Let the hive mind of Engadget get that for you.
"I finally got a new laptop with a lone USB 3.0 port. I'm now looking at getting a USB 3.0 hub with a power adapter so I can use both of my USB 3.0 hard drives at faster speeds. I've read lots of horror stories where some hubs either don't come with power adapters -- and as a consequence the portable drives don't work with them properly -- or they are designed poorly which results in USB 2.0 speeds. Or, the hard drives keep getting disconnected. Do your readers have any suggestions or experience using USB 3.0 hubs? Thanks!"
I wrote a tutorial about the technologies behind the GMail offline demo. You can find it here: http://blog.msc-mobile.com/2009/03/03/1236073555483.html
I see that its a way to tout HTML5, but people with blackberry already has "offline" access to gmail and push gmail. Is this just a fancy web interface?