How long after initial release does Apple generally update the OSX with a new version? Just wondering about the bugs affecting the new macbook airs. Some people say their 'instant on' is hardly instant? Are there any other Lion issues I should know about? And should I wait until OSX upgrade before I buy my Macbook air 2011. Do you get free version updates from 10.7 to 10.7.1 to 10.7.2 etc, like online downloads for free? I have never had a mac before, apologies.