Mobile World Congress is going on right now, and I'm keeping an eye on all the new posts. As I find interesting bits, I'll post them.
So far, I've found 3 videos that I want to share. The first one is from CrunchGear, and it shows Qualcomm's Mirasol prototype. It goes through the standard demo that you've probably seen elsewhere.
The other 2 videos are from ArmDevices.net. Each shows a 7" Android tablet, one from Qualcomm and the other from a Chinese company called Hauwei.