Apple's MacBook Air is in such short supply that units ordered today will not ship until the end of August, according to retail sources cited by Bloomberg's Mark Gurman. Apple is unusually steering buyers toward the base MacBook Pro instead, warning on its site that the MacBook Air is subject to availability. 4 Reviews ← exclude selected types ← exclude selected tagsApple's MacBook Air, long the company's best-selling laptop, is currently so hard to come by that an order placed today will not arrive until the end of August. According to Gurman, Apple is now prominently steering customers toward the base MacBook Pro instead of the Air, something the company has rarely, if ever, done before. Some of Apple's own marketing materials now carry a caveat reading “MacBook Air subject to availability.”