Steve Jobs may have disappointed some of us yesterday by failing to announce “one more thing” at the end of his press event today (rumored all-metal MacBooks, anyone?), but Microsoft, having just announced scads of accessories yesterday, still has one more up its sleeve. The SideWinder X8 mouse is the the company’s first wireless gaming mouse. It also features Microsoft’s new BlueTrack technology, which allows it to operate on almost any surface, sans mouse pad. It has a 2.4-GHz connection, and 250 to 4,000 dpi. It also comes with a cable so users can play while charging, and this cable can be wound neatly around a cable management system. Other features include vertical side buttons, a scrolling click wheel, a Microsoft games launch button, and an on-board LCD to view dpi and Macro settings. There’s a mouse record button, seven programmable buttons (including right and left tilt buttons), the ability to switch dpi on the fly, and, finally, it comes with interchangeable feet in three materials. It will be available in February for $99.95.