Hands On With iPhone's Star Defense..........!!!!

_'Star Defense is a classic tower defense game set on a series of planets. Instead of defending your base from a line of encroaching enemies from a top-down perspective, though, the game plays in 3D.

The game will feature seven or so worlds that you unlock as you go and three difficulty settings. The locations I saw included a comet-like planet and a square Borgish cube. In both levels enemies spawned from an alien ship and then marched along a trail that wrapped around the planet or cube until arriving at your station.

The 3D perspective could be turned or zoomed into using the touch interface.'

Via_Kotaku