It looks like we may finally see Apple unveil its mid-2011 MacBook Air models some time this week. Best Buy has stopped shipping all MacBook Air notebooks as of this past weekend. The online retailer is still taking orders, however, which indicates that Apple will likely not adjust pricing when it issues its refreshed models. Of note, unless Apple introduced an entirely new model at a much lower price point, this puts earlier rumored sales targets of 8 million units well out of reach. Several sellers on the Amazon.com website are showing low inventory or stockouts as well, further supporting the notion that Apple has stopped refreshing distributor inventory as it prepares to begin shipping updated MacBook Air models. Apple’s mid-2011 MacBook Airs are expected to feature Intel’s new Sandy Bridge processors and Thunderbolt I/O ports, among other changes.