lol, you didn't notice any difference in the browser?

And there is no HTML email in 4.5, so would not have noticed anything there. There are other enhancements many users have been requesting (playlists, silent dialing) that you might have overlooked.

Overall, it does seem to be an improvement, but if someone told you OS 4.5 would put you on par with an iPhone... nah. You'll have go buy one to get that.