agg’s $99.99 ZAGGfolio–also available in a $129.99 leather version–may have been the first masterpiece of iPad keyboard design, and it’s still one of the best. It’s a binder-like case with a removable Bluetooth keyboard with full-travel keys and as comfy a layout as you’re going to get given the size constraints. Your iPad 2 or current-model iPad slides into a lip that holds the tablet snugly, but also lets you slide it out in a jiffy so you can use it without the case.I’ve said that buying one of these changed my life; I wasn’t exaggerating. But I’m not crazy about the clasp, which I’ve found needs to be wriggled into place to close the case properly.