It really has to. The current implementation of only allowing 2 metro apps to share a single screen and having their snapped sizes dictated for me is really not useful.
I've got a Windows 8 box setup at work and am using it as my main desktop computer to force myself to get used to Windows 8, and I do 98% of everything in the desktop.
When people come by to check it out and see what it looks like, they are all dumbfounded by how limited the implementation of metro and the metro apps are. I usually let them drive and they try to figure out how to resize windows and are surprised to find they are either full screen, most of the screen, or a sliver of the screen...and that's it. Many actually think I am pulling their leg and joking with them, that this is how the system is designed out of the box. And many have said, well, I'm going to just disable that and use the classic option instead. And then I inform them there is no classic option without 3rd party tools and their jaws practically hit the floor. And that response has been unanimous.