When Facebook first added the top bar, which includes links to one’s home page, profile, inbox and has a search box at the extreme right, TechCrunch jumped the gun and started talking about an OS inspired design.

Today Facebook adds another navigation bar to the design — this time at the bottom. Look familiar? The ‘Applications’ button works just like one’s Start menu on Windows, and the first five icons are like the ‘Quick Launch’ toolbar.

It’s worth the effort to think if the future of navigation techniques on the web lie with present operating systems. In a web application’s bid to become as fast and functional as native OS applications, are we seeing a move to the same and familiar OS UI controllers?