I'm writing this post with the Nokia 770 I received today. It's really great, and it even works in ad hoc mode.

(photo uploaded from my computer)

I had some difficulties with the memory card, but I'm told this is just an IQ test (that I miserably failed ;-)). I also found a bug: when you first start the device, it asks you what language you want it to use. I selected French, but it forgot to change the keyboard layout (it was still a british one). I should report it to Maemo's bugzilla.

Thanks a lot, Nokia!!