I currently use a Blackberry Bold. There's a long long story about how I really wanted an iPhone but a future shop salesman conned me into buying a blackberry because iphones weren't available at the time (and i assume he was doing this for comission). Anyhow, my favourite feature in this phone is Word Substitution. And by that I don't necessary mean spellcheck. For example, "ure" turns into "You're" "ur" turns into "your" "brt" turns into "be right there" all automatically after you press space after the shortened version. you get the point. These are all substitutions that I've been able to program in myself through the Word/Input settings. They're a extremely useful for someone who sends a lot of text messages or writes a lot of emails. For those purposes, this phone is adequate, but I plan on getting iPhone 5 (or whatever it'll be called). In short: is there a utility or app (App store or cydia) that you can get to have this sort of feature on an iPhone? thanks in advance.