Lion coming this week or next, but which day is up for grabs

> Either way, Friday releases of major OS X upgrades have been somewhat of a tradition for Apple for nearly a decade. With the exception of Cheetah and Puma, which were released on a Tuesday and Saturday, respectively, back in 2001, all major new versions of OS X have made their debut on a Friday: Panther (Friday, Oct. 24, 2003), [Tiger](http://www.appleinsider.com/articles/05/04/29/notes_of_interest_tiger_party_iwork_encyclipodia.html) (Friday, Apr. 29, 2005), [Leopard](http://www.appleinsider.com/articles/07/10/26/an_…