Report: Apple Readying Thinner, More Powerful, Greener MacBooksReport: Apple Readying Thinner, More Powerful, Greener MacBooks

Of the two, the 13-inch consumer MacBooks will undergo the most significant metamorphosis, shedding their plastic enclosures for ones constructed from more eco-friendly materials such as aircraft-grade aluminum and stainless steel, people familiar with the matter say.

The move, which makes good on a promise by company chief executive Steve Jobs to push towards a "greener Apple," will also mark an end to Macs that come clad in the now tawdry looking white enclosures that began with front face of original iMac nearly a decade ago.

Similarly, the MacBook Pro is also bound for aesthetic revisions, which like their upcoming MacBook counterparts are described by those familiar with the products as borrowing several design cues from the August 2007 aluminum iMacs and all-new MacBook Air. The end result, those same people say, will be a more uniform Mac product matrix in terms of design and material usage, and a MacBook offering that will far outclass its rivals.