Expo: Kensington puts it all on the ball

Accessory maker Kensington announced the SlimBlade Trackball Tuesday at Macworld Expo.

Designed for control, comfort and ease, the device, which is compatible with the Mac as well as Windows-based PCs, routes all manipulation of digital content through the ball itself. Navigation, media adjustments, document and photo browsing are controlled by rotation of the trackball, with an on-screen user interface indicating which mode or function is enabled.

Navigation mode controls the cursor and scrolling; Media mode controls volume, play/pause, stop and next, while View mode zooms in/out and pans for photo editing.

The SlimBlade Trackball will cost $130 when it ships at the end of January.