I notice that my MacBook Air seems to be losing a little more power than normal in deep sleep mode. I had it off for about 12 hours today and it dropped from 98 to 95. On my 2010 that's what it would lose during a full 24 hours. It isn't much, but it does seem that it would be a stretch to last 30 days (not that I plan to test that out). Also, it takes a few seconds longer to wake from deep sleep than my 2010. Of course, since multiple variables changed, I don't know if it's a Lion thing, an encryption thing, or a 2011 MacBook Air thing. It's a minor thing, but hopefully it gets fixed. Do you have any observations about this from your 2011s?