Rumor has it that Apple is readying a massive refresh of its Macbook Pro line, to make them more like the Macbook Air in design.

The rumor comes from AppleInsider, which cites “people familiar with Apple’s roadmap”. The publication reports:

This will include new, ultra-thin unibody enclosures that jettison yesteryear technologies like optical disk drives and traditional hard drives in favor of models with lightweight chassis that employ flash-memory based solid-state drives, instant-on capabilities, extended battery life, and rely on digital distribution for software and media.

“They’re all going to look like MacBook Airs,” one person familiar with the new MacBook Pro designs told AppleInsider. Meanwhile, existing MacBook Pro designs are expected to be phased out over the course of the year.

The late Steve Jobs was known for his focus on design, sometimes at the cost of functionality (see Antennagate). It sounds like design is still a vital part of Apple’s mentality under CEO Tim Cook so far.

The iPhone and iPad might be the sexier Apple products these days, but Macs continue to sell quite well too. Apple’s Q1 earnings report indicate that Mac sales were up 26%, having sold 5.2 million Macs in the quarter. In addition to that, over 100 million apps were downloaded from the Mac App Store in less than a year.

Interestingly, however, iOS has eclipsed Mac OS X in web market share, according to a recent study from Chitika.