I got mine on Monday, only fired it up for the first time 30min ago, as when i came to burn the OS image to an SD card on Monday it kept coming up with an error. Figured about an hour ago i'd put in on a USB stick to try (ive got a pair of 8gb cards which should arrive tomorrow) and that failed with the same error. I'd found nothing last time i googled for ages, and it turned out the path it was using to get the image was too long. Now why it cant say that instead of just 'Error 8' ive no idea. It was on my home server PC, with everything else i download from my main machine, so once i moved it over to my c: it was fine, and we were in business... ish.
It didnt quite like my keyboard. It worked, but sporadically, and sometimes seemed to lock on a keypress, so typing a pw to get into the OS was tough, esp as it doesnt show *** etc for each character, so no way of knowing if i was in or not.
I was using a USB KVM, so removed that from the equation and it didnt even work anymore, i suspect it was drawing power from my PC to help power the KVM, and that was helping power the kb/m. Different USB kb, same mouse, and everything was fine and moments later i was in Debian 'Squeeze'.
Havent done anything with it yet, but nice to see a desktop enviro, and i'll have a bit of a play and look at the alternative OS's with the other SD cards.
The paperwork that comes with is very comprehensive, theres an A4 (single sided) of the compliance & safety info, and another which says:
For your free download go to raspberrypi.org/downloads
So i might be a while going through all that first