Everyone has MP3 players on their cell-phones now. Well imagine if you had blutooth headphones and were able to control your music through your watch, you'd never need to take your phone out of your pocket. Well thats exactly what Sony Ericsson decided to do with their new MBW-100. Now a bluetooth watch is nothing new. Just recently our wristwatch blog talked about the new Fossil caller ID watch. While the Sony Ericsson MBW-100 contains almost all the same features as the new Fossil watch, the ability to control music and a sleeker design puts this watch on top.