Ok, I have a Revolution MX. I can't believe as long as that mouse has been around that they don't offer a bluetooth version since it's such a great unit. My only complaint is that I have that stupid FULL SIZE usb adaptor that I could accidentally break off. I don't know why they can't at least make a mini plug for a $100 mouse (especially since if you break your usb adaptor Logitech will not replace it-they say they can't and you are stuck with a $100 paperweight) Can I either somehow get a "mini" adaptor or better yet (I know I am going out on a limb here...) is there a way that a revolution mx could be "upgraded" by someone to bluetooth. It just seems crazy that such an expensive mouse doesn't offer current technology. Any thoughts would be appreciated.