Ross Rubin (@rossrubin) contributes Switched On, a column about consumer technology.

Google's incursions into software -- particularly in strategic markets for Microsoft, are like an Earth-bound asteroid. Observers see it coming for a long time, and fear its impact will be devastating when it finally arrives. So far, though, Google's major software forays have been anything but cataclysmic, and Microsoft hasn't even had to send Bruce Willis into space to stop them.

On one hand -- as I discussed in a recent Switched On column that argued why Android was not the right choice for netbooks -- the mobile operating system continues to have a lot of potential to reshape the smartphone OS competitive landscape. On the other hand, while Chrome is a fine browser, Microsoft, Apple and Mozilla all have their counterparts, and certainly Firefox and Safari at least give Google's browser a run for its money in terms of speed, privacy and user interface. Chrome's impact has been blunted because the PC is already an open platform.

Enter Chrome OS, which will be available on ARM and Intel processors. For the high-volume Intel PC market, Chrome OS will have to take on Windows, but Chrome OS is very different than other Windows competitors such as the Mac OS, Ubuntu or the OS/2 of yore, in that Google does not seem focused on creating platform-exclusive applications. In some ways, Chrome is more of a competitor to Silverlight than to Windows, as Silverlight is Microsoft's cross-platform application foundation. Of course, Windows is Microsoft's home field, and Chrome OS will be Google's.

We've been toying with a VholdR ContourHD helmet cam for a few weeks now, seeing how well it blends in with our adrenaline-fueled lifestyle. We've mounted it on various helmets, tried it with some moderately extreme endeavors, and, now that we've had a chance to refill our asthma inhalers, we thought we'd share a few of those adventures and give our impressions of this helmet-mounted HD shooter.

Have you ever wondered why you can't use the existing coax cable in your house to stream things like HD around the house? Sure WiFi and powerline modules work for some, but unfortunately they don't for everyone. So if you're still looking for a way to stream data like HD around your house and are at wit's end, head over to Engadget HD to learn how the Netgear MoCA Coax-Ethernet bridge handled the most demanding HD needs.

We know a lot of people out there who take any changes to the ThinkPad line very seriously, so it's easy to see why Lenovo didn't make any huge revisions to the T400 formula when designing the new T400s. Sure, it's slimmer, lighter, and all around sleeker than big brother, but it's still a ThinkPad, and it's still tough as nails. You might think of it as the internals of the T400 stuffed into a slightly thicker version of the X300's case -- it might not quite fit into a manila envelope, but it's still pretty easy to forget you've got it in your bag. Of course, it's hard to cut down on size without sacrificing performance, and the T400s is no exception -- although our tester's 2.4GHz Core 2 Duo was more than capable of handling our day-to-day workload, the only graphics option is Intel's integrated 4500MHD chip, and that means hardcore image processing and most intense gaming are out. Good thing ThinkPad owners are all business, right?

Here's the one-line summary of the Kindle DX: It's a Kindle 2 with a larger screen, hair-trigger orientation sensor, and an awful keyboard. Seriously awful. Yes, we know we should be focused on things like PDF support or even content partners like newspapers and textbook publishers, but we're having a hard time getting over the keyboard -- it's emblematic of some puzzling design choices Amazon made with the Kindle DX. What do we mean? Read on.

Sony announced today a new entry into its VAIO series, the NW, complete with a Blu-ray drive and what they're hoping is an aggressive pricing point. It's packing a 15.5-inch WXGA display with XBRITE, 2GHz Intel Core 2 Duo P7350, ATI Mobility Radeon HD4570 with 512MB VRAM, a 4x BD-ROM drive, 4GB of DDR2 RAM, webcam, 802.11a/b/g/n, a 400GB HDD, and a Li-ion battery that's at best 5.5 hours in large capacity and at worst 1.5 hours with the standard-sized version. Port-wise, we've got VGA and HDMI output and Memory Stick Pro, ExpressCard, and SD card slots.

We got a chance to get some hands-on time with the portable, and we gotta say, it's a pretty impressive little number. It's not the most slender 15-incher, but at six pounds, it's lighter than we expected. The chiclet keys -- dubbed "isolated keyboard" by Sony PR -- are comfortable to use, as is the textured trackpad. Body and hinge felt sturdy, with an intentionally rugged and stylistic feel to it, and as one rep was excited to show, the metallic "Vaio" logo on the back makes a great reflection in the sun. From what we saw, Blu-ray playback was smooth, but we did notice horizontal viewing angles weren't the best. We'll reserve judgment when we get some play time with the unit and see how hard we can push the software, but for now we're pretty happy with what we've seen. Starting price isn't too shabby, at $880 equipped with the BD-ROM and $800 without, and it comes in three colors: white, grey, and dark brown. Striking your fancy? Look for it to ship out pretty quickly, as in some time next month.

Let's be straight here: we're a little perplexed by the new MacBook Pro line. On one hand, Apple didn't really make enough changes to warrant a whole new review of the unibody lineup, and minor speed bumps aside, briefly using one of the new machines feels pretty much like using most any recent Mac: it's OS X on a really nice, albeit extremely glossy screen. On the other hand, after a week in the trenches, it's clear that all those seemingly minor changes will have a big impact down the line -- especially the move to sealed-in batteries across the board, which is a decision with decidedly mixed consequences. What's more, we think these changes impact the 13-inch and 15-inch models very differently -- the $1,199 13-inch configuration might have a shiny new Pro label on it, but even Apple admits that it's an entry-level consumer machine, and consumers and professionals don't have the same needs.

So while this isn't going to be a full-on review, we think just slightly more than just our usual bullet-pointed impressions are in order -- and we think it's important to actually break things down by model. How do Apple's latest laptops stack up? Read on for more.

We've seen a lot of innovation in the consumer point-and-shoot market over the past year or so, from capturing homemade action sequences at 1000fps to shooting 720p video underwater. Many of these innovations are borderline overkill, like 12 megapixel sensors wedged in behind cheap lenses, so we're happy to report that, despite its impressive specs, the latest superzoom shooter from Panasonic is respectable all the way through. The DMC-ZS3 doesn't offer any crazy features that are completely unheard of elsewhere, nor does it suffer from any rock and roll-style excesses for the sake of arbitrary "world's greatest" claims. It's just a solid camera, but at $400 is it the sort of thing you want in your pocket, capturing your family's precious moments this summer?

Well, well -- what's this? Amazon's Kindle DX just arrived a little earlier than we expected, looking every bit like the big brother to the Kindle 2 it did at launch. Seriously -- apart from new, less comfortable keyboard, externally you're just looking at a Kindle 2 with a bigger screen. Turn it on, though, and you immediately notice the orientation sensor, which is almost too sensitive. We're loading this thing up with content and putting it through its paces right now, but in the meantime hit up the gallery below for the unboxing and some comparison shots.

What would you call this? A "fleet" of MacBook Pros? A "catch?" A "murder," perhaps? In any case, Apple just dropped off the entire line -- including the newly-status-bumped 13-inch MacBook Pro -- at Engadget HQ, and while we'll have some in-depth impressions and benchmarks soon, we thought we'd throw up the unboxings and family photos for you right away. We're sort of struck by how amazingly similar these are in person, but we're eager to see how the internals stack up -- and whether that integrated NVIDIA GeForce 9400M in the 13-inch can handle a professional workload. Anything else you want to know?

Update: We just noticed that the 13-inch has lost its dedicated audio input jack, we're guessing because of space constraints with the addition of SD and FireWire 800 -- but we're told the new single jack supports both input and output. We're testing it out, we'll let you know.

We're all pretty spoiled in these digital days; not that long ago taking a look at a vacation's worth of photos required a trip to the store, a couple of hours (or days) wait, and then the better part of an afternoon getting fingerprints all over a stack of poorly composed shots that you daren't throw out because you just paid good money to have them printed. Now you pop a memory card into your computer, wait a few seconds for them to fly into an appropriately labeled folder, and then... probably forget you took them. It's so much easier it's hard to fathom the process getting even more simple, but that's what Eye-Fi has done with its line of wireless flash memory cards, which beam pictures directly from your camera. The company has just announced the $149, 4GB Eye-Fi Pro to make the process even more direct, letting you send pictures straight to a computer while also adding some additional features that pros and semi-pros will appreciate. We put it through its paces after the break.

Little more than a month after getting our sweaty, gloveless mitts on the Zero Motorcycles Zero S we received an offer to ride yet another high-tech wunderbike: the Brammo Enertia. Naturally our first reaction was excitement -- excitement only slightly dampened by news that we'd again be using the gridlocked NYC streets as our test track. But, we risked life, limb, and the ire of many a taxi driver to get some impressions of the latest electric motorcycle to hit the streets, and grabbed some video action of it all too. Read on for the lot.