We don't mind eyeballing a few impossibly clean renders when we get wind of a new toy, but there's nothing like the real McCoy. Today's bones slipped out of a (now pulled) HDblog hands-on of the Acer Aspire 3951 Ultrabook, possibly leaked ahead of an IFA 2011 embargo. The genuine article looks nearly identical to its rendered counterpart, albeit a bit thicker and more plasticky. The unveiled 13.3-inch MacBook Air competitor reportedly sports a second generation Intel Core processor, boots from sleep in under two s