logic involved

The just-released IE9 Beta features a slim user interface. This makes pretty much sense: in the web, the focus is on the content – not on the tool that is used to display it.
Or as Herb Sutter puts it:

Of course, that’s because the page/site is the real app. And like most apps they are indeed going the other way.

The browser is not really an app; it’s a shell, like the OS shell, just a runtime necessity to run the real app and provide some convenience housekeeping tools.

One more thing that changed since the early browser wars.

It’s forgotten all too often:

Search is a way to harvest demand, not to create it.

(Drew Houston, co-founder & CEO of Dropbox, about Google AdWords in his “Startup Lessons Learned” presentation).

via Jeff Barr.