According to 9to5Mac.com, as early as tomorrow, Apple could be rolling out an upgrade to the MacBook Air line of 11 and 13-inch notebooks.
The upgrades are said to only be a slight CPU upgrade to the Intel Core i5 Haswell processors. These processors require less power than the previous CPUs in last year's model Airs.
If you're like me, you are still waiting for the rumored 12-inch model MacBook Air that is suppose to sport a Retina display, an even slimmer chassis, and no longer need a fan. I'm guessing that model, if it's real, to be announced at this year's WWDC conference which gets underway on June 2.