Thank you Pete for mentioning this. A little history... (Now, my memory may be a little rusty on the details, but you'll get my point.)
InDesign used to be called Pagemaker. When the V.3 came out it was five disks. This was crappy especially when you're a company and have to pay someone to upgrade all of your systems one at a time. Which was a heck-of-a-lot back then. When Aldus(?) announced all the new features for the next version people freaked. How many disks was this going to be?...seven?...TEN!??!
Three. Two less than the previous version. Because they started from scratch and rewrote the whole damn thing. When's the last time you heard a major software maker doing something like this?
I think you're right on point, Pete. Apple wants lean, mean apps. Not bloatware. It'll save disk space and memory allocation. And remember, we're now getting 2 gigs of memory after many years? I doubt they're going to up the memory again any time soon. And software designers need to realize this now rather than later.