Update 3/29/12: Peek's OS has been open-sourced! The new dev site is here: PeekLinux.com
Well, I just received my casepack of 30 Peek devices (it was originally supposed to be 20...) and I have nothing to do with them. I'll be hanging out in #peekdev (##peek is no longer used) on Freenode IRC as cyrozap, so spread the word about the IRC channel and join in so we can collectively figure out how to make this awesome device better! Code to help get started has been posted to http://peekhack.posterous.com. http://elinux.org/Peek has some good info on how to flash the device.
Oh, and thanks to Sam Aarons for letting me know that Peeks were being given away! I still have no idea why that news hasn't reached Hack-a-Day yet...
Update 2/29/12: For those of you wondering, this is how you wire up a normal micro-USB cable to an FTDI cable for use with a Peek. Sorry for the poor photo quality; my iPhone's case has plastic covering the lens that likes to diffuse light. :|
From FTDI -> USB, the connections are: Black -> Black, Red -> Red, Orange -> Green, Yellow -> White