Wirelessly posted (Mozilla/5.0 (iPod; U; CPU iPhone OS 3_1_3 like Mac OS X; en-us) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7E18 Safari/528.16) Anyone else notice that the new MBA is a little tippy. By this I mean that as you open the lid it seems to want to tip backwards. Of course it won't tip over and once you put your hands on it and start typing it seems fine. The MBP seems much more stable. Should I be concerned about this?