If you were hoping your BlackBerry PlayBook would get a taste of BlackBerry 10, think twice. Despite earlier plans, Thorsten Heins just revealed that the newer OS isn't coming to his company's tablet due to "performance and user experience" concerns. The executive didn't discuss the long-term future of the PlayBook, but it's clear that the current model is at the end of the road. When the company's earnings are back in the red, devoting attention to a long-struggling device isn't likely to be high on the priority list.