I just finished up the PC version of my music recommendation app, tunebounce. What it does is looks at your iTunes music library and finds the songs that are played the most often, and rated highest. It then finds you albums that are similar to those highest played songs based on what other users have listened to. The Mac version's been out for awhile, and there are a couple hundred happy (I hope) users of the system. Let me know what you think!
The windows client requires the .net framework, but it autodownloads for you if you don't already have that...
The windows client requires the .net framework, but it autodownloads for you if you don't already have that...