i think there is one main point for this:

*you can create mesh networks*

before you would all physically cram around the range of a single wifi point/ethernet connection. now you can have lots of devices connect to each other and effectively extend the range by creating a "net/mesh" instead of cramming around the same physical space.

interestingly enough, the OLPC device has this ability already:
http://wiki.laptop.org/go/Mesh_Network_Details

i have the current TOUCH HD, and i am upgrading. i was thinking between these:

1) Archos 4.3" 3.5G (HSxPA only) Android
2) Nokia N900 (no digital compass, keyboard has "perverse" space-bar placement, no tom-tom and no google maps)
3) sony Erickson "rachael" X3 (will probably be late like the Xperia 1, at best released 1st quarter 2010)
4) Motoraola DROID (sholes/tao) little ugly maybe, but keyboard, large screen, android, great CPU,etc...all good.
5) TOUCH HD2 (no keyboard)

now these are MY preferences and reasons.

1) i discarded the Archos, as soon as i found it was ONLY 3.5G HSDPA-HSUPA (mainly for data, business use) so no 2G or 3G networks AT ALL!
that doesn't do me any good when i travel to other countries.

2) the Nokia N900 i was lusting after. amazing camcorder (848x480@25fps) that Linux OS (Debian based) is fucking amazing and the multitasking puts EVERY smartphone to shame. it really is a computing tablet.
BUT....the keyboard is only 3 rows (my old HTC Universal had 6 !). and the lack of digital compass is a big downer. digital compass is going to to take off in apps in a BIG way quickly with A.R.

3) the Sony X3 will come too late for me, i can always upgrade next year in 6 months if they release it at all. also, no keyboard, but apart from that, it should be a great device.

4) the Motorola DROID seems like my preferred device. it has everything i want. they just have to release it, and it seems they will, on time before XMAS.

5) the TOUCH HD2 is an amazing device, but it runs WinMo, i have a dislike to it a bit (too many probs and don't like the way it (doesn't) work sometimes. this is almost completely fixed with HTC's amazing interface replacement. i've tried SPB shell and a bunch of other replacements. i don't like them. HTC have however made me stick with my device longer than i would have without their help (XDA developers FTW!)
the rest of the HD2 is pretty damn astounding. digital compass, 1Ghz processor, that HUGE screen (i refuse to use anything less than 3.5" or WVGA) all make for a powerful device that i can see easily upgrading to from my TOUCH HD.

i want the DROID, if it comes before XMAS i'll have it and be laughing deliriously to leave WinMo for Android.otherwise, i'll still be very happy to get the TOUCH HD2, it will practically be a drop-in replacement for the TOUCH HD.

after it has accelerated (and traveled) to 62 MPH remember

"wireless AND bluetooth...."

do you mean Wi-Fi and Bluetooth ?

Engadget seems to not know that the 1.8Ghz is NOT the limit for the rest of the world.....

the Vaio P with 2Ghz Atom CPU is available right now in Japan and other parts of the world:
http://www.geekstuff4u.com/sony-vaio-p91.html?SID=322fe790af35bdd8b90053ad922f0dc8

yes, increased accuracy. it's pure performance for those that can appreciate it in gaming, and for those that THINK they can appreciate it.

@Berlium

thanks for the music tip-off. exactly why i came here to find out :)

@Cory

yeah how are those Nvidia chips treating you?
http://hothardware.com/News/Apple-Admits-Nvidia-GPU-Defect-in-MacBook-Pros/

it's all true about the balance of sensor and optics.

with optical mice, the sensor is one aspect, the other is very good optics that the light has to pass through/refract. same with cameras, having a sensor/film is one thing, but if the light thats hitting it is buggered to fuck going through plastic lenses then it's worth shit.

you need some decent optics to make good use of the available sensor medium. this is why some Sony and Nokias with Carl Zeis optics provide VASTLY better results compared to other phones with higher mega pixels, but crap lenses.

as with anything, it's about balance, there's no point in investing a better sensor without investing in an equally supportive lens.

@Levi:

Nvidia running Android on TEGRA
http://www.pcmag.com/article2/0,2817,2341229,00.asp