The polycarbonate white Macbook.When Apple bumped the 13-inch unibody Macbook up to “Pro” status, you knew they were planning a refresh for white polycarbonate version. It’s been the lone wolf sporting the Macbook name for some time now, and the body design is three years old.

That’s all about to change, according to a rumor posted at AppleInsider. Apparently Apple is going to redesign the Macbook and add a few more models to the lineup. The polycarbonate Macbook, it turns out, is one of Apple’s best selling devices. In fact, it beats out just about everything other than the iMac on Apple’s online store. That’s probably due to the $999 price tag. New Mac users find the price appealing enough to make the switch, and frankly, it’s a pretty good deal.

I wouldn’t be surprised to see this happen within 4-6 months. Adding an even lower model would allow Apple to continue to perform well in the face of economic crises and steal more users away from Windows machines.