Colossatron: Massive World Threat was just announced for iOS at PAX Australia by Halfbrick, creators of Fruit Ninja, Jetpack Joyride and various other insanely successful and addictive mobile games. As the name might (?) suggest, Colossatron is a giant robot snake thing seemingly bent on global destruction.
TouchArcade has the description of the game: The player, rather than trying to stop Colossatron, is tasked with keeping the behemoth fully armed and operational by attaching colored segments to its body as they fly in from off screen. Each segment's color and relative position to other segments dictates the effect that it'll have on the creature as a whole. Segments can also combine into more powerful segments based on color and proximity.
We're keeping a cold, metallic tympanic membrane to the ground for more information about the game's release window and pricing structure.
Update: Halfbrick has sent us the game's official announcement press release, which has been tucked away behind the break. It teases that players will be able to "combine their destructive powers, with additional competitive and cooperative social features revealed soon," so we'll see what that's all about when further details are divulged "in the coming weeks."