mmkkbb's Journal: What Open Source project should I work on?

I need something to program besides work. Resume's here, but I'd like to try something not related to what I've already worked on. I have interests in getting better at Cocoa and Objective C, Java, audio (Coreaudio in particular).

The problem is that I need a problem to focus on. I can't just make my own tool every time. It would be boring.