After using a g1 in a tmobile store I was left with some questions... first, where are audio profiles? Similar to nokia. I want to be able to switch between work and play and in between. Possibly on a timer that is user defined. Any ideas on this feature? And another one along the same lines: is it possible to do switch to vibrate on the fly or must I go through the menu to access this feature. For examplle, I walk into a movie theater. I want to silence my phone. What do I do?