The next version of Apple's OS X, Lion, is set to be available in the Mac App Store next month. And it sounds like Apple is going to hold off on releasing any new hardware that would use it until it's available.
For example, there are apparently new MacBook Air models ready to go, but rather than have people buy them and then need to update the OS in a month, they're just going to wait and ship them with Lion pre-loaded.
Same goes for new Mac Minis and LED Cinema Displays. So if you're in the market for a new Apple computer, the smart money is on waiting until Lion is available.
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Via Apple Insider