That's the exact logic that MS had when they added the sidebar to Vista. It sounds good, but for some reason no one ended up actually interested in using it.
From my point of view, the OS is a completely different thing then the browser. Because an OS is not specifically vertically oriented, where websites (for 99% ?) are. Therefore I do not like some kind of default sidebar in my OS.
I remember using a Vista machine for a short while and immediately looking for a way to disable it (also because it kept asking for widgets to put in there, if I am not mistaken; but that is besides the point).
