I like it
I use Google Docs quite a bit, but I really like the sound of Apple's approach. I don't know which I'll end up using - perhaps Google Docs still (for the ability to access in a web browser from anywhere, and the sharing).
I'll certainly be using iCloud for all the other stuff though (contacts, photos, calendars etc).
Apple's approach is, I think, more tangible to the average user than the more caveat-laden approach Google has. I'd never want to get a Chromebook, as I don't want to rely on a net connection. It might make sense if you're always in a big city, but if you ever travel abroad, data roaming charges (and availability) varies so much that it'd be impractical to use.
Plus, I can't entirely see what you gain from the Chromebook, except a whole load of compromises. I can see it suits Google down to the ground, but I'm not sure I'd ever convince my mum to use it (or understand it).