January 24 - 9:40pm EST   Alongside Apple's developer note on the MacBook Air, more details of Apple's unreleased MacBook Air continue to be revealed as the first units of the new notebook begin making their way into the hands of group of select reviewers. Following notes on issues with using 3G mobile broadband devices with the single available USB port, a new report indicates that the inside of the MacBook Air may be every bit as "sexy" as the outside and that the battery may be easily replaced by some users (however, it is unclear whether this will void the warranty). Gizmodo also confirms an earlier Electronista report: Apple's external SuperDrive is not compatible with other Macs or computers ... [full story]