We've long been waiting for the era of the tablet computer to take hold, and peering on the horizon are three interesting candidates to take tablets from speculation to spectacle. Among them: Michael Arrington's recently delayed CrunchPad, Microsoft's booklet-style Courier and the oft-rumored Apple Tablet. Will tablets actually be something people are interested in this time around? We ask Rob Enderle from the Enderle Group, and Harry McCracken from Technologizer. Distributed by Tubemogul.