My usage of my Android tablet is different.
I use a web browser (Miren), an ebook reader (FB Reader) and Acrobat Reader (which is the nearest thing to a decent PDF reader on Android!) regularly, and that is it.
Its nice to be able to use a web browser or read an ebook with the convenience of a small format hardware (carry it in one hand, read in bed), but if I am actually sitting down with it for any length of time I far prefer my laptop.
I see the app store as a technically inferior (no dependency handling) and locked down equivalent to what Linux has had for years. As pete says mobile device apps are just applications.