I love visual design exercises like this, but it's one thing to throw it out there and a completely separate (10000x harder) feat to actually have this implemented. If you usability test this interface, it's going to fail all over the place. Remember, Windows is probably the only piece of software with EVERY SINGLE segment of users.
http://cdn.robszumski.com/share/file-copy.png
The file copy window that's tacked on to the explorer window contains way too much information. A skilled but non-technical user is going to see "164 MB/s" and "72%". Where's the time left? You have to remember, people don't read -- at all, ever.
"Hey user, how do you tell when this is done?" "Funny you mention that, I never have any idea. I know that the percent is there in the squiggly bar, but what does that mean? Each week my podcasts seem to take different amounts of time to copy, but I never really know."
http://cdn.robszumski.com/share/copy-worst-case.png
"Sometimes I can't even read the number because the line goes straight through it." Obviously this could be designed in a much better way, but when you look at these perfect screenshots it's impossible to see how it would act. This is where designers make their money for the company.
There are a lot of people in the comments of the article saying the author should be hired by Microsoft. I don't think that's going to happen.