Nothing fancy, nothing grand, but by simply scanning your iTunes library kwible will locate the latest albums by your favourite artists. You can specify the iTunes store, a maximum price and even limit the results to the current year. You never have to keep tabs on each and every artist in your library to see when their next album is available for download ever again!
There's no software available at the moment that does exactly what kwible does. You have to manually keep tabs on all your artists in your library to find out when they've released their latest album. This can be extremely tedious and outright annoying.