Was to be expected that Apple would take action against it. Hosting the project on Sourceforge was really a bit too bold.
It could be interesting to observe how this develops further. For Apple, it could become a real problem if the music industry thinks their DRM implementation is too lax - and, for example, prefers Microsoft's model.
On the other hand, Apple now has such a large market share in music downloads that it's probably somewhat difficult for the music industry to take action against Apple without shooting themselves in the foot. Though they're dumb enough to try anyway.
At Industrial Technology & Witchcraft there's the original article.