Chances are, the battery on your iOS or Android device won't even last through one "round" of Desert Bus, but don't let that stop you from picking up Penn & Teller's infamous "verisimulator," which tasks players with driving a bus from Tuscon, Arizona to Las Vegas, Nevada ... in real time.
The game has made a name for itself over the last few years, largely in thanks to Loading Ready Run's annual Desert Bus for Hope event (going on now!), in which its members are forced to play in exchange for Child's Play donations. It's only appropriate then, that all proceeds from the iOS and Android versions of Desert Bus will also be heading to Desert Bus for Hope and, thus, Child's Play. You can grab it now from iTunes or the Android Market for a buck.