I currently have the 2010 11" MacBook Air. I am highly considering the purchase of the 11" i7 MacBook Air, but need to know more about its performance with web videos. My 2010 Air cannot play them full screen...even on 360p quality. 1080 does about one frame per second. 720p MIGHT do two FPS. So, my question is this. Can the new models actually play YouTube videos full screen without stuttering badly? If it still has performance that cannot even handle a 720p video, that will greatly influence my decision!