Ive only had my 15" MBP for a week so ive been getting used to the new machine. I was wondering why when I close my lid to put it to sleep and then pick it up and put it in my bag, it wakes up and the apple logo glows? I hear the disks spinning up whenever i move the machine, is there a reason for this? This can't be helpful for preserving battery life while the computer is sleeping, as a 15 minute trip to work this morning left me with 94% battery life. is this just a leopard flaw or something to take to the apple store?