Been playing with my new 32 GB black/slate iPhone 5 (AT&T) and have noticed the keyboard is....terrible. It's incredibly slow - i consider myself a fast typer. I confirmed with my wife's iPhone 4S still on iOS 5.1.1 that it was in fact something new on either the version of iOS 6 the iPhone 5 is running out of the gate or some weird hardware thing (doubtful it's the latter).
Quite simply, typing anything at any worthwhile speed system wide takes a solid ~25% longer as keys are constantly missed. Anyone else noticing this?