The split keyboard alone is enough to compel me to tip my hat to the good folks at Apple. I'm also discovering that there are some new features on the camera (well, new to me anyway). Didn't have any problems updating: many people reported that stuff like contacts info etc. became lost during their own update procedures but happily, that time seems to have passed (something about how Apple's iTunes servers couldn't validate properly with all those folks attempting to install simultaneously).
Meanwhile I'm considering getting my first-ever smartphone, an iPhone 4S. Don't know if that means I'm officially "dumb" now or what... :-P