I just couldn't disagree more. When I look at the things I do on my personal computer, I'll admit I spend a lot of time in my web browser, but there is so much I'm doing outside of it too. And it's not just because no one has made a website for that yet; it's that it just doesn't make sense.
I guess I haven't made myself clear then. When I'm talking about "apps" I mean the small applications that are running on mobile devices these days. I am not talking about full blown applications on your PC. This is also why I believe there is hardly any benefit in merging desktop-platforms with "app-devices".
I believe there is a difference between content-creation devices and content-consumption devices or, if you prefer, 'lean-back' and 'at your desk' devices.
There is a need for applications and we won't see Chrome-OS making PCs redundant any time soon.