Logitech t620 Touch Mouse & t400 Zone Touch Mouse review
 

Logitech has done a fine job bringing mice to the market that at least partially compensate for the lack of a touch screen on a Windows 8 system. Unless you have just purchased a brand new all-in-one system or notebook with built-in touchscreen, chances are slim to none that you own a touchscreen display that adheres to Microsoft’s requirements. With the t620, Logitech succeeded best in our opinion: this mouse offers serious added functionality for Windows 8, that in our experience you will actually use and enjoy. The t400's extra functions are far more limited, too limited to really consider this a true Windows 8 mouse.

http://uk.hardware.info/reviews/3468...-for-windows-8