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Less than the current 11-inch MacBook Air? I don' t think so. Apple claims 2 hours less on the 11-inch Air compared to the 13-inch. Macworld's test of the latest 11-inch MacBook Air (Mid-2012) shows 4 hours 11 minutes. Maybe you meant shortest battery like Acer Aspire 8920 battery , Acer Extensa 7630 battery , Acer Aspire 6920 battery , Acer AS07B72 battery , Acer AS07B32 battery , Acer Aspire 5920 battery , Acer AS10D51 battery , Acer AS10D73 battery , Acer AS10D75 battery , Acer AS10D61 battery , Acer Aspire 4738 battery , Acer Aspire 5551 battery life for current MacBook Pros?
What a let down. At this price point I would expect Apple differentiating the 13' MBP Retinal from MBA with a significant better benchmark. The absence of a discrete display card and the mediocre performance increment is a joke, and hardly justify the "Pro" in the new 13'.