Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 3_1_2 like Mac OS X; en-us) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7D11 Safari/528.16) My mbp is 1 week old. It is the 15" i7 2.66 4gb ram 500gb HD@7200rpm noticed that at 100% I am only getting a tad less than 4 hrs of juice when continuously watching HD YouTube clips with caffeine on. Is this normal? I was hoping to get more. Also I'm getting a bit over 6 hrs of juice if I'm just browsing the web and checking email, again with caffeine on. In addition, is there a major diff bt the moshi and marware keyboard guard?