Cite this under Stuff We Like, because World of Goo, one of the best games ever created for Wii, and then iOS, is now available on Android. The game is a thinker, but also an incredibly beautiful and simple way to spend a few minutes, or a couple hours.
You take control of a bunch of, umm, goo as you try to help them get sucked up through various drain pipes in the sky. To get there you have to create structures and pathways, solving various puzzles along the way. I’ve played it so far on the Galaxy Nexus, and but it should work well on any Android device with a capable GPU.
There is a demo available to try first, and the full version is available for $2.99CAD.