For all the benefits of touchscreen keyboards, there are many who maintain a steadfast allegiance to the gods of tactile feedback. So how does this Mini Key case with sliding QWERTY for the iPhone 4 strike you? Unfortunately, the keys were a bit hard to press on the backlit prototype keypad handled by Engadget Spanish, and it links to the iPhone via Bluetooth, not the iPhone's dock connector (there's a cutout at the bottom for a cable to pass through). And no, all that added bulk still doesn't include an extended life battery pack . Perhaps some of this will change before it goes on sale before the end of the year for $60 / €60, we doubt it though.