go and buy a nokia / samsung / motorolla... and then wait to see how long it is before you get a software update. I applaud apple for even providing any form of updates in the first place!
As I've mentioned in other threads, I get the impression a number of people here aren't cell phone junkies. I went through IIRC four different firmware revisions in the time I had my Moto RAZR, from 09/04 to 11/06. In the time I had my Moto A1200 (11/06 to 08/07) I went through about five different firmware revisions. Cell phone manufacturers do actually update their firmware on a relatively regular basis. However, their issue is rather that they don't really advertise it anywhere near as well as Apple does. Just making the point.
Well, that and how about we not tar and feather Apple over what is not in an update that hasn't been released yet? Personally I'd love to see them shower a bit of love on the existing apps (better contact management features, more robust calendar options) before showering us with the new....