Appletell reviews four top games for the iPhone, iPod touch

A few weeks ago, I wrote about 5 simple games available for the iPhone and iPod touch. There were some great games, but what if you wanted something a little more challenging, something to get you thinking? Here are four great titles below for you to check out, each of a different genre: KDice Trainer War Game, Red Bull Air Race World Championship, The VOID and iMind.