There are some people who just won't use a trackpad, even when the pad is built into a laptop like your MacBook Pro or MacBook Air. For those folks, there are a lot of cheap USB and Bluetooth mice, but many of them are either designed primarily for use with Windows machines or -- in the case of Apple's own Magic Mouse -- somewhat bulky. Logitech has the perfect solution for those who love both laptops and mice in the new Ultrathin Touch Mouse T631 for Mac (US$69.99).
Apple's Magic Mouse weighs 3.8 ounces (107.7 grams), while the Ultrathin Touch Mouse weighs just 2.4 ounces (68 grams). The Ultrathin Touch Mouse is smaller in size than the Magic Mouse as well; while Apple's mouse is 4.5" long x 2.25" wide x .75" at its thickest point, the Logitech mouse is