Razer makes cross-platform gaming equipment and has a new section on their site called "Powered For Mac". If you were thinking of upgrading your mouse for a new game release, be careful: Some of Razer's hype is misleading. My new Razer Imperator was advertised as a "Powered For Mac" device with some nice features. But after hooking it up, I found most of the functions aren't included in their latest Mac driver. Functions like button assignment, macros, profile management, and onscreen HUD when switching on-the-fly sensitivity. Now I have an expensive mouse that doesn't really do anything. In short, beware. The "Powered For Mac" product line from Razer isn't exactly optimized for Mac. Bummer..