This was one of my early XNA learning projects. I originally created QuiteAnoid in C++ using Allegro (or was it SDL, I don't remember anymore) so it seemed like a good candidate for getting into some XNA development.
It's a standard break-out clone, a ball bouncing and hitting the bricks, you control the pad. Animated(!) power-ups can drop from the bricks that you destroy. Most graphics was made by a friend of mine.