The good: The 13-inch MacBook Air has been updated with the latest Intel CPUs for better performance and battery life. Backlit keyboards make a welcome return. The bad: The 128GB SSD drive is a lot smaller than a standard hard drive. This also starts at $100 more than the 13-inch MacBook Pro. The bottom line: The latest version of the 13-inch MacBook Air vastly outperforms its predecessor, and can finally be called suitable for mainstream use, instead of relegated as a niche product. As with most Apple products, the MacBook Air has moved into an annual update cycle, taking it from the original niche product version to its new perch as Apple\'s mainstream laptop line. With that, we\'ve also seen a continued mainstreaming of the system\'s components and capabilities over the course of three generations. Apple\'s new Air models hold last year\'s prices, the 13-inch model starts at $1,299, but while dramatically upgrading the processing power: the new second-generation Core i5 processor in the base 11-inch and 13-inch Air is a jump of two Intel generations, going directly from the older Core 2 Duo CPUs past the first generation of Core i5/i7 chips and directly to the 2011 second-generation Core i-series. Physically, the new MacBook Air looks and feels identical to the one from October 2010, with one important exception. Both the 11- and 13-inch models now include a backlit keyboard, a much-missed feature in the previous generation (in a CNET poll, 26 percent of readers listed a backlit keyboard as their most-wanted new MacBook Air feature).