The Apple MacBook Air is one of the most attractive laptops on the planet. But sexy fades fast and an update is due. Reports suggest Apple's been ordering up production of 400,000 MacBooks this month. That, coupled with meetings planned at Apple shops on Tuesday and a claimed Wednesday release, has us excited. Expect Intel’s Sandy Bridge silicon and Thunderbird I/O tech crammed into the same slimline Macbook Air chassis we know and love.