Funny game involving Zombies.

Called "Zombie Run" on the Market. Uses GPS to allow you to set a "target" and you have to make it there while randomly-generated zombies are after you. You might look a little silly walking fast while staring at your phone, but it's a fun timewaster if you're walking around towns on errands.

I wish there was multiplayer, you could link up profiles and you all have to avoid the same zombies.