Ok, ok, no one was seriously expecting five hours of usable time. I'm clocking in around three, barely. I'd be interested to see what kind of time people get out of their unplugged Airs, and what programs they're running while on battery. So at 10 cycles, my two week old 1.6/80 Air gives me 2h40m. (from 99% to 7%.) My screen was at 2/3 brightness and wifi was on. I'm running Adium, Firefox, CSSEdit, Snak, Pages, TextMate, Process Monitor, Little Snitch, MiniBatteryMon and some light Flash and Photoshop. (Web stuff, so I'm not unsharp masking 600dpi images here.) Disappointed that I'm getting so little time, and I keep an eye on Process Monitor to make sure nothing's inhaling CPU. Let's put aside all these reviews' simulated benchmarks and find out how our Airs are really performing. Update: Thanks to everyone for responding -- the real-world anecdotes of your usage help prospective buyers gauge the product, and they showed that I was within the normal range. (Was a bit worried for a minute!) I'd still pick up an external batt in a second, if there were ones with MBA magsafes!