A Quick Tour of the MacBook Air - Side View: Thin to Win (
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Here's probably the biggest "wow" factor of the Macbook Air: It's
freakin' thin. Real thin. Wafer thin? No, but close. It's .16 to .76
inches. Wow. Apple claims the battery life to be 5 hours, but those who have labs to play with (like PC Mag and Cnet) are finding something between 3 to 4 hours.
Business Advantage: It's so thin and light it's perfect for carrying, storing and always having with you. Easy on the shoulders.
Business Drawback: Typical Apple battery that is not easily replaceable or removable.
Mobile & Wireless 
