Today, Research In Motion (RIM) Co-CEO Mike Lazaridis showed off the first working prototype of the upcoming BlackBerry PlayBook tablet computer running the new BlackBerry Tablet OS, at Adobe's MAX 2010 conference in Los Angeles.\n\n\n\n\n\n \n\n\n\n\n\nLazaridis unveiled the BlackBerry PlayBook tablet in September at RIM's third-annual BlackBerry developer conference, and attendees were given access to a PlayBook display room. But the tablet Lazaridis held on stage during his DevCon keynote while announcing the device, and the tablets on display for DevCon developers, were only "dummy" units with no working OS.\n\n\nCheck out the video to see for yourself, but Lazardis's main focus at MAX 2010 was understandably on AIR apps and the tablet's multitasking features. Lazaridis showed off a number of specific PlayBook apps built using Adobe AIR, including new "CIO Cockpit" for SAP and Salesforce Chatter apps. \n\n\nRIM's co-CEO touted a media player that streams HD video through PlayBook browser "using Adobe AIR as its interface"--a first on a tablet computer, according to Lazaridis. The RIM exec also quickly showed off the BlackBerry PlayBook browser itself.\n\n"We're not trying to dumb-down the Internet for a small mobile device," Lazaridis told the audience at MAX 2010. "What we're trying to do is bring up the performance and capability of a mobile device to the Internet."\n\nFinally, Lazaridis told MAX 2010 attendees that any developer who creates a PlayBook app that's accepted into BlackBerry App World will be eligible to win a free BlackBerry PlayBook tablet.\n\nIn related news, RIM also unveiled a new Adobe AIR SDK for potential BlackBerry PlayBook software developers at Adobe MAX 2010. Unfortunately, there was no mention of Flash support for BlackBerry smartphones, even though both RIM and Adobe have promised Flash support for BlackBerry before the end of 2010.\n\nAS\n\n\n\n\n Al Sacco covers Mobile and Wireless for CIO.com. Follow Al on Twitter @ASacco. Follow everything from CIO.com on Twitter @CIOonline. Email Al at ASacco@CIO.com.