http://feedproxy.google.com/~r/venturebeat/SZYF/~3/owp8z4-mJz0/Apple has announced an updated version of the entry-level MacBook Air laptop, a thin and light notebook computer that previously started at $1,099. The new version starts at only $999, and has been internally updated with new components, but looks substantially like its predecessor.Most significantly,  » ....