Ahh... I see now, I had it all wrong thinking the Nokia was an actual UMPC, when in all actuality it's simply an
evolved PDA with a slightly larger screen! Guess that changes a few of my comparison points.
1. Size - 110 x 61.8 x 8 vs 135 x 78 x 14 (mm) or 4.3 x 0.3 x 2.4 vs. 5 x 0.6 x 2.8 (in)
2. Weight - 120 vs 185 (grams) or .26 vs .41 (lbs)
3. Screen - 3.5 HVGA (320x480) vs 4.1 WVGA (800x480)
4. OS - OS X vs. Nokia Customized Linux
5. Storage - 8/16/32GB vs 128MB (the N810 has 2GB)
6. WiFi - Both do 802.11b/g
The fact that the Nokia is running a customized Linux vs Windows XP or Vista as I had thought changes a lot, though not necessarily for the better. Where XP/Vista has a seemingly limitless supply of software available, Linux is limited to what people want to develop & support in the community. While there's quite a bit of custom software you can get for the Nokia, the same can be said for the Touch; ultimately since they are both Linux-based, you may see the same apps available for each as interest/developers get involved.
Expandability - You're pretty much stuck with the built-in memory of whatever model Touch you choose, but you can have up to 32GB out the gate. The Nokia is really limited on default space, but you can update on-the-fly with RS-MMC cards (maybe the newer model supports SD, not sure about SD-HC though). You're stuck with Apple's OS with the Touch, while there are a few custom OS's people have put together for the Nokia.
Power Usage - Since they're both pretty much PDA's, they support instant-on and have close to the same power-on usage times. Heat generation was originally a concern, but since learning more about the N770, I see they're both running microprocessors that don't use too much energy or generate heat like the current line of UMPC's.
Price point - Both can be had for close to the same price, so that's not really a factor.
I guess what is drawing many mobile readers to the Nokia is FBReader & a higher-res screen, I also noted that it supports a few more media formats. Would I personally get a Nokia? No, I like the dimensions of the Touch and what it can do suits me just fine. The Nokia would have been nice a few years ago to replace and ailing PDA, but it's not an UMPC as I originally had thought and wouldn't even be a consideration for me now. As I said earlier, I'm not trying to *sell* the iPod Touch, I simply thing any fairly large purchase should be looked at from all angles prior to taking the plunge and shouldn't be simply based on biased opinions. I try and get physical with a new device before I make the purchase, but when I can't sometimes I just have to take the plunge and experience buyer's-remorse after the fact.
Here's some links to reviews & more info about each:
Nokia 770 -
Specs OS Info CNet Review
Apple iPod Touch -
Specs OS Info CNet Review
BTW Thanks for helping me clear up the whole misconception about what the N770/800/810 is, I am enlightened!