-9 pages is more than 3 times what anyone can actually make use of. Otherwise its wasted space.
-Categories are are not coming to the official OS, as they are a quirky preference that is ultimately unnecessary.
-Any competent person can easily organize the applications they use into 2-3 or nice looking pages. Its very easy (and fun) to do. Once you've done that, Spotlight is the answer for app launching. Even if you are a nut ball with 9 pages of crap you don't use, there's no need to scroll...at all. From your main home screen, which is the only screen i use, one click of the home button brings up the keyboard, type the first two characters and your app is waiting for launch. Touch it and off you go.
-Anyone who thinks Spotlight is a pita compared to categories is just being an antagonist for not getting exactly what they want.