Had the opportunity to play with the Playbook at Enterprise Connect a few week ago. The only advantage the RIM guy could recite was that "it does flash". He let me play with the tablet and it was very warm (almost hot) to the touch on the back of the tablet. The buttons on the top felt cheap and like they could break at any moment. When I told him it was good to see it's not vaporware, but then mentioned my observations, he simply reminded me "yeah, but it does flash". I wonder if these design issues are why it hasn't hit the market yet?