Nvidia, in its ongoing quest to convince everyone to buy Tegra 3 devices, demoed several very impressive-looking games a few weeks ago. One of them was Puddle THD, and it's now available in the Play Store in both lite and paid versions.
In Puddle THD, you use the accelerometer to control the flow of water (and eventually other fluids) through a maze of pipes and troughs to reach the goal. You have to account for friction, gravity, and temperature to make it to the end. The non-water fluids all have their own properties to consider as well. Controlling a river of molten lava is much different than a refreshing stream of water, but that shouldn't be a surprise. Scores in the game are based on the volume of liquid you can save.
The game is only for Tegra 3 devices, so most of us are left out in the cold. Those with devices running Nvidia's flagship ARM chip will get impressive HD graphics with realistic physics, shaders, and textures. There are currently 40 levels, with the promise of more coming each week in free updates. I'm also pleased to see there is support for USB and wireless gamepads. If $4.99 is a bit rich for your taste, check out the free version first.