WWDC kicks off a week from today, with a keynote address to be delivered by Apple CEO, Tim Cook, and crew. Many are expecting that we'll hear all about iOS 6 and OS X Mountain Lion. While that may be the case, 9to5Mac is reporting that Apple is also set to unleash a slew of Mac updates at its annual developer event as well. In fact, Mac hardware may end up stealing the show, as Apple is purportedly set to refresh four out of the five Macs in its lineup, which would make it the biggest simultaneous Mac hardware launch in company history.

The expectation is that we'll see new MacBook Airs that carry Retina displays, a redesigned MacBook Pro with Retina display, USB 3.0, and thinner profile, a new iMac with updated internals and a possible Retina display, and an update to either the Mac mini or Mac Pro (our fingers are crossed for a Pro update--have been for a while!)

WWDC should be exciting, and we'll have all the news for you live from the keynote as it happens!