Can any of the early adopters/testers comment on how well implemented the Auto Text is? Can I add an unlimited (or a lot) amount of custom auto texts? Does it just compile a list of "km=I'm" "omg=Oh my god" etc., like Blackerry does? Does it ever 'miss' the auto text? How well is auto text in every day typing? And in general, is the keyboard any more responsive? I find the IP4 keyboard not as responsive as it used to be with the 3GS -- could be my imagination. It seems to miss keys and space bar taps whenever I thumb type very quickly. Thanks.