The popular open-source shooter “rRootage” from Kenta Cho was ported to iPhone / iPod Touch already in 2008 by Lazrhog (but seems to be unavailable again). Today a new version of this game was released by another developer: Fraglab. The recent version is fully iOS4 compatible and takes full advantage of the simple multitouch-controls to steer the ship, got music, sound effects, online scoreboards and adds various new gameplay-modes. Get the free game here. (via)
This port of rRootage is once again a double-plus, because there still is really a lack of decent 2d-shooters on the iPhone (big hint to all developers!).