RIM should definitely target the corporate market rather than the consumer market. Consumers do not buy tablet computers based on the speed of the processor or the hardware-assisted 1,080-progressive video playback capability. instead they buy this type of device based on design, peer pressure, and the types of applications that are available. It shouldn't be a problem for RIM to target the corporate market, they just have to call the device a "Blackberry Slate" instead of a "RIM Playbook"
I would include to it a pedestal so that whenever I wanted to make it stand on my desk, i could. And I would try to add the best hand write recognition software there was so that the input could be a stylus... that would make it a more useful device as to take notes... perhaps this would be the enterprise edition differentiator since having an all entertainment tablet doesn't sound that much appealing to some of us techie "work-oholic" guys :-)