The Raspbery Pi mini computer-board has finally just been released: http://www.bbc.co.uk/news/technology-17190918

... and, I'd be grateful to hear of folks here who might have a shot at using it with Pd over the coming days.

I ordered one from farnell, just got an email to say they wont have any till april,

cant wait to get my hands on it!

I just posted a new topic to this effect, but I wrote a tutorial on how to setup Pd on a R-Pi:
http://log.liminastudio.com/programming/running-puredata-on-the-raspberry-pi

Hope this helps! Let me know if it works for you!