A patch for Rock Band was just released today, and it adds an extremely useful function; an in-game store. Now you can download any song available for the game, while you still have the game on. No more dealing with the Playstation Store or Xbox Live Marketplace, downloading your tunes and loading the game back up. What’s even better, is that if you’re not sure if you like the song or not, you have the ability to preview the song before purchasing. Now this is what I call a patch!