Feeling computer illiterate in OSX

Well finally updated to Lion today, and had heard a few friends gripe about how scrolling is funny and this and that.  So here are my thoughts so far.  I liked having a three finger swipe left and right changing my pages, I mean it's not a huge deal that it's now two finger swipe, the only problem now is that software needs to reprogram itself to take advantage of this.  So I mean that will come with time. In addition to that I need to learn like all of my gestures again, grrrrrrrrrr.  Just when you've gotten to a point when you know how to use everything it changes.  I guess this is a relatively significant OS update as compared to Leopard vs Snow Leopard.  There's cool things like mission control which is essentially a souped up version of expose which I do like.  Not sure how I feel about launchpad though, that may have something more to do with the fact I have more apps that I actually use on a regular basis.  I'm also trying to figure out why my iTunes has died on me right now. So as a whole yeah it's kinda cool, I like things like the new lock screen, but there are also some other things that I'm not quite sure about