I don't think anything here is new or really that surprising. We already know that Apple is, by far, leading the race on number of apps (both created and sold), and we've heard before that games tend to do very well on the marketplace in a number of demographics. The end of the report has some great numbers, too, on standout applications like Angry Birds and the eBay app.
Otherwise, it's basically a big round-up of a lot of the stats that we've heard so far. But having them all in one place gives a nice overview of just how big this little software ecosystem has become.