Lenovo offers its Lenovo S6000 / S6000L Bluetooth Tablet Keyboard, model no. 888015122, for $37.91. Coupon code "LENOVODEAL122" cuts it to $20.91. With free shipping, that's $2 under our mention from two weeks ago and the lowest total price we've seen. (It's also a current low by $12.) It's compatible with Lenovo Bluetooth-enabled tablets and features a magnetic hard shell cover, battery, and power supply.