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Doubtful that the 8500 series will get OS 6. Doesn't have the processor or the memory required to run it.
Using the SEARCH feature and a read through of the OS 6 section, here is what popped up: OS 6 Official devices
And from a RIM press release in August: http://www.theberryfix.com/rim-sends...erry-6-release
"Compatibility with Existing BlackBerry Smartphones
BlackBerry 6 will debut on the new BlackBerry® Torchxxx8482; smartphone (announced today) available from AT&T on August 12 and it is also designed to run on select BlackBerry smartphones already in market. Subject to carrier certifications in the months ahead, the new OS is expected to be available for the BlackBerry® Boldxxx8482; 9700, BlackBerry® Boldxxx8482; 9650 and BlackBerry® Pearlxxx8482; 3G, as well as future BlackBerry smartphones."