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Upstream suppliers are said to have begun shipping the components this month, though it remains unclear whether the final version of the 15-inch laptop will be marketed as a MacBook Air or a MacBook Pro. Based on the timing of the order, sources believe that mass shipments of the device will begin in March of next year, according to Taiwan's DigiTimes.
However, it should be noted that the publication has, as of late, had spotty reliability when it comes to Apple product predictions, though it claims to be well-connected in the Asian supply chain.
Late last month, it was reported that Apple was finishing up a "test phase" for a new thin-and-light 15-inch MacBook. The Mac maker is also rumored to be developing a 17-inch ultraportable MacBook, though such a machine was not mentioned in Tuesday's report.
AppleInsider reported in February that, according to people familiar with the matter, Apple appears poised to move its MacBook Pro lines more toward the MacBook Air next year. The company is believed to be interested in bringing features, including instant-on, standard SSD drives, slimmer enclosures and the omission of optical drives, to the MacBook Pro in future designs.
Apple co-founder Steve Jobs seemed to telegraph such a move last year when he said that the MacBook Air, which had been redesigned to incorporate standout features from the iPad, represented the "future of the MacBook."
The MacBook Air's portion of Apple's total Mac sales saw a significant jump in July after the company released an upgrade with Thunderbolt, Sandy Bridge processors and back-lit keyboards. According to a recent analysis, the thin-and-light notebook now makes up 28 percent of Apple's notebook shipments, up from 8 percent in May and June.
As of the September quarter, portables represented 74 percent of the company's Mac sales, despite seeing record desktop sales in the same period. Meanwhile, total Mac sales last quarter were the highest ever at 4.85 million units.
Analyst Gene Munster with Piper Jaffray believes the latest NPD domestic sales data point to Apple selling 5.3 million Macs over the holiday quarter. Wall Street consensus for the quarter stands at 5.2 million.