ngmoco, Inc. has Star Defense Prelude, Topple 2+, Maze Finger+, & Dr Awesome+ (iTunes Link) in the iTunes App Store for FREE for a limited time.

ngmoco’s new Plus+ Network allows users to show off their scores to the world with Plus+ leaderboards, earn Plus+ Points and compare their Awards with their Plus+ friends, and take your progress anywhere with Network iSave. If you have OS 3.0, instantly challenge your friends directly via the Plus+ network.