The ChallengeOS project
NOTE: Sometimes ChallengeOS is spelled as ChallangeOS. This is because I misspelled "challenge" when I was registering this project at SourceForge. So sometimes they refer to ChallengeOS as "ChallangeOS", because that is the name they now use internally.
This is the official ChallengeOS homepage. Here lies a lot of documentation about this project and when the development proceeds you will also find downloads of the latest version on this site.
Some source code is already available. You will find all releases made up to date on the SourceForge page.
We are also searching for helpers. If you want to contribute in any way, send me an email (GregorMueckl@gmx.de)