If you've just gotten back from the long weekend, Skater Nation from Gameloft rolled into the App store for  $6.99.   Based on a modified Gangstar engine, this title turns an entire city into an open world sandbox for your boarding fun.  There were also some nice price drops as always.

Dirt Moto by Resolution Interactive has been lowered to $.99

Star Rangers by Analog Retro has dropped to $.99