What are the best physical keyboards for the iPad?

> Logitech has released a number of unique iPad keyboards in the past, and its new [Folio Keyboard for iPad][1] continues the strategy of offering something a little different from the masses. While its name is similar to many recent options, Keyboard Folio is actually bulkier than most of its rivals, with a pink, yellow, blue, or black canvas exterior. It stands out from rivals thanks to bigger-than-average keys, and a cool use of magnets. A Micro-USB cable is packed-in for recharging, and Logitech promises that you can type two hours a day for three months before running out of power. ![enter image description here][2] [1]: http://www.logitech.com/en-us/product/keyboard-folio?crid=1240 [2]: http://cdn2.ubergizmo.com/wp-content/uploads/2013/03/Logitech-Keyboard-Folio-mini-4-640x502.jpg