A key feature of TouchFire is that it can be easily retracted when the user wants to use the full screen. And it automatically aligns itself with magnets; it snaps into place on an iPad 2 (it also automatically aligns on an iPad 1 with the Apple cover).
By the way, I love TapTyping. There might be some new speed records coming your way soon from TouchFire-enabled iPads...
Ah it's great to hear that the TouchFire will be very fast to take on and off. There's still a bit of fidley-ness to it but it sounds like you've done everything you can to address that design concern.
Hmm, yah it will be interesting to see the WPM difference using TouchFire. Maybe we need a third leaderboard to account for it ;).
By the way, I love TapTyping. There might be some new speed records coming your way soon from TouchFire-enabled iPads...