I did have mine "break" but I can still use it. Somehow the screen cracked from the inside. Speculation is the battery was overcharged and swelled. I looked it up on the Internet and pretty much every discussion about it was filled with people claiming those with broken screens must be lying or had damaged it somehow. Microsoft doesn't acknowledge a problem.

Oh well. It still works, and I have my WP7 now. The Zune is just for biking.