RIM's PlayBook just got real -- quite literally -- at Adobe's MAX conference today. Granted, out-of-the-box Flash and Air support are being billed as a big deal for the PlayBook, but it still seems a little strange that the company showed non-functional dummies running video loops encased in Plexiglas at its developer conference just a few weeks back, only to let Adobe show the good stuff at its own event here. There is some logic behind it, for what it's worth: Adobe and