I've submitted our project,
OpenInkpot (open firmware for e-ink devices) to the
Google Summer of Code.
Amongst other
ideas for Google Summer of Code there is porting OpenInkpot to Cybook, Kindle, iLiad, Sony PRS.
If you're interested in participating in GSoC and have questions about OpenInkpot - ask them in our mailing list or in IRC channel.
ps: sorry for crossposting to several forums.