Just found the notMac project.

About the project (quote):

Welcome to notMac, a free, open-source utility for using the client-side dotMac services provided by Apple. Since many people already operate their own servers and don’t require dotMac’s server-side features—such as an @mac.com e-mail address or online access to their contacts—the notMac Challenge was started to encourage the development of a method for using the other OS X and iLife integrated services—like syncing and iDisk access—using one’s own hardware. Thanks to the generous contributions of people from around the world, and a dollar-for-dollar matching fund, the challenge raised $8,622.

Currently the solution requires a server running OS X, but efforts have already begun to create Linux and Windows compatible versions. The installer and source code can be downloaded from SourceForge by clicking the links above. For any questions or comments, please visit the forums. Again, congratulations to Ben Spink for winning the challenge. I’m sure the rest of the Mac community appreciates his hard work as much as I do.

Sounds great. Gonna test this application for sure.

Download here

Forums here