I have serious doubts this information is up to date. The mockup for the interface without a URL bar was made something like a year ago, when Chrome OS was first announced. It had an actual implementation of the said compact navigation that was removed soon afterwards. That document existed at that time and I think they just haven't updated it.<p>If I recall correctly, Compact Navigation looked like IE9, with a mini omni box that fit on the tab row. I thought it was ugly, and the tab strip is cramped enough already without the omnibox, navigation and certainly not extensions.<p>Also, the multiple profiles thing isn't new.<p>As a random note, does the Chrome team have something with ponies? The mockup shows the url google.com/ponies (just checked, 404). One of the Cr-48 hardware versions is named Pony.