I have one of the new 13" MBA and was wondering what the normal battery life is? I unplugged it and it said 99% battery life after a few minutes and it was under 6 hours. I thought it was supposed to be 7+ hours on a full charge???
For the average stuff I'm doing, which is usually running Chrome and Safari, then connected into a couple different remote servers or other user workstations simultaneously I can run a couple ticks above half bright and get about 6.5 hours on the 13" MBA, but closer to 8 hours on my MBP. What kills battery for me is LogMeIn connections and instant chat services I run for work. My MBP is closer to 5.5-6 hours of run time.
I've also found the battery monitor is not super accurate anyway, getting to a full drain one day took almost 9-10 hours of off and on usage. I don't know how it stayed running that last hour, it was running on E by then. I felt like this: http://www.youtube.com/watch?v=TuEdU_lrtZk