Logitech Zone Touch Mouse T400
Logitech has replaced the middle button on the $50 Zone Touch T400 with a glass touch strip. Clicking the forward two-thirds of the strip takes you to the Windows 8 Start screen, while tapping the back two-thirds area opens a window that allows you to switch applications. Sliding your fingers left and right across the strip performs a horizontal scroll.
We liked the feel of the matte finish on top of the T400, and its rubber-coated sides render it easy to grip. But the device is too small for anyone with even average-sized hands. We hadn’t been using the mouse for more than an hour before ours curled into a painful claw.