Graynomad:
Oh, 50MB, maybe some other time, we don't all have unlimited data plansI have no immediate use for this because I only (well mostly) work with 32-bit CPUs these days, however if you port this to the Due I'll get much keener as we're designing a new version of it and the fresh hardware platform may like a fresh software platform.
Thanks for the observation on the download size. I have cleaned this mess up and got the master zip from github down from 50 M to 343 K ;-).
The documentation and references have been moved to Dropbox. They shouldn't have been in the repository at github from the start. Sorry about that!
You can now read the documentation online http://dl.dropbox.com/u/993383/Cosa/doc/html/index.html and download http://dl.dropbox.com/u/993383/Cosa/doc.zip
Full details on this update is available in the github README. GitHub - mikaelpatel/Cosa: An Object-Oriented Platform for Arduino/AVR
Cheers!