Following reports that owners of the new MacBook Air models are experiencing 802.11ac WiFi problems, Apple has begun sending invitations to some users, asking them join its AppleSeed Program in order to get a pre-release version of an upcoming MacBook Air WiFi update.Related StoriesDwindling Apple Thunderbolt Display supplies suggest 4K update is coming soonHands-on with OS X Mavericks: Multiple-display supportWhich MacBook Air is be
