1 770 running newest official OS (wife claimed that one quickly, still loves it)
1 770 running newest HE (2008? been a while)
1 N800 running newest update of Diablo... though prepping to dual-boot using 16GB SDHC with Ubuntu when it stabilizes.

Love the 770 because of the hard shell & the very smooth touchpad (doesn't require software smoothing to make it barely usable).

Love the N800 because of the forward facing speakers, the dual (full-sized) SD(HC) slots, standard USB connector (I have enough cables in my bag, I like that 1 will work with 5 of them), the external D-pad, and the adjustable/recessable quasi-covert camera.

Decided against the N810 for all the reasons mentioned above, plus the fact that it is missing critical keys for Unix command-line work, while adding keys that are utterly useless in this country (USA). Seriously, if they're going to have country-specific versions of the devices, they should have country-specific keyboards. No reason to have keys no-one will ever use in the target market.

I'm hoping the new one will have at least some of the nice features of the N800... but I'm very likely to get it solely for what we already know about it.

Oh, and I hate the power-supply connector on all of them. Who designed that thing? Could they make it more fragile?