I love subtle innovations like this: Second Life hair that changes to look wet when it touches the water. Created by Natalia Zelmanov and scripted by her brother, it's basically virtual hair programmed to detect its relationship to virtual water. "It checks to see if it's under the sim water level every few secs," Ms. Zelmanov tells me. "Actually it's more complicated, because it only turns wet when you leave the water... it doesn't make sense to drip when underwater." The hair also comes with a spray can and a scripted block of prim-based water, which are also programming to be on speaking terms with each other. "The Water Bottle and Prim Water Script actually talks to the hair, telling the hair to turn wet." That only covers how Natalia's hair gets wet. "And then there's all the stuff that goes into making the hair dry! I drove my bro crazy...believe me." Read more about it here. A much more subtle tweak of avatar reality than bouncing breasts, to be sure, but a clever one all the same.