We have a hard enough time holding it between bathroom breaks as it is without being taunted by sloshing water on our phones, but we have to admit, it's pretty darn nifty nonetheless. It seems NEC's
N702iS for NTT DoCoMo has a motion sensor that detects tilt, affecting the "liquid" inside the display appropriately. As battery level drops, so does the level of the liquid. Whimsical, yes, but when you're technologically dominating every other carrier in the world, we think you're afforded that luxury.