Logitech Performance Mouse MX $54 at Amazon

$7 price drop. Amazon has the Logitech Performance Mouse MX Wireless Laser Mouse for $74 - $20 rebate [Exp 9/13] = $54 with free shipping. Features the Logitech Darkfield Laser Tracking technology which claims to work on glass and uneven surfaces. Includes Unifying receiver, micro-USB charging cable, AC power supply, pouch for charging system.