Zagg's lineup of keyboard cases for the iPad mini has just grown by two with the introduction of ZaggKeys Cover ($100) and ZaggKeys Folio ($100). Both sport the same, small Bluetooth keyboard; it's just as wide as the tablet in landscape orientation. The big difference between the two is how they hold your iPad mini in place. Cover uses a magnetic lip, somewhat like a Smart Cover, which means it leaves the back of the device exposed. Folio, on the…
