I need some help deciding whether to get an MX1000 or the MX610. I know that I would probably like the MX1000, but I'm thinking that the MX610 might be better. Unfortunately, I have yet to see one. It would be nice if the few lucky ones that already got a hold of it could answer some of my questions: Is it less bulky than the MX1000? How does it have 10 buttons (Isn't it just the same as the MX1000 - back, forward, left, right, middle, scroll up (vol up), scroll down (vol down), scroll left, scroll right and application switcher (mute)?) Does the mouse turn off when the computer goes to sleep (even on a Mac?). And, my last question which I doubt anyone can answer yet, is the battery life really that much better? Thanks, and enjoy the weekend.