HydroTilt, a game developed by Publisher X, is now available in the App Store for $2.99. The game is controlled by tilting the iPhone or iPod Touch and lets the player guide a droplet of water through 30 colorful levels. Your droplet of water can be frozen, heated until vapor is formed or it can change into other forms. It looks like Mercury Meltdown Revolution and seems to be offering a lot of new features compared to other ball-rolling games. Get it now, because on January 5th it will cost $4.99!