See this? It's a standard iTunes link. Thing is though, that iTunes link doesn't direct to iTunes. It goes to the new Mac App store. Do you know why?
http://itunes.apple.com/us/app/angry-birds/id403961173?mt=12
First, there's the obvious reason: the Mac App Store isn't part of the standard iTunes suite because there's no point in providing its features to Windows users. Here's the less obvious, going out on a limb, thinking-about-this-in-too-much-detail reason. Although App Store for Macintosh is a whole separate application, in its secret behind-the-scenes-superhero-identity, it's basically just an iTunes browser.
When you look at App Store, the application, there's really not much