It looks like Google is beginning to test a few new inbox styles within Gmail. In other words, this may or may not be in your Gmail account yet (or ever). Anyway, as you can see from the above image, those with the option available will have a drop down menu next to their Inbox and will be presented with a few options to include Classic, Important First, Unread First, Starred First and the Priority Inbox. And according to Google; “Try them all, keep what fits.” And that of course means that you can try and always go back to the inbox style that you prefer. Me personally, I think I will be sticking with the good old classic, but it s nice to see different options coming available.
Via [Google Operating System]