Oh WTF. This is such a stupid, poorly produced article based on the flimsiest of logic.
"While most of the devices listed could easily relate to the original Dreamcast, flash memory cards and floor mats were never a part of the company's machine. Could Sega be quietly getting ready to re-enter the console business?"
Yes. Yes they were, dumb-ass. Leave it to Kotaku to paraphrase the same idiotic theory in the original idiotic article.
VMUs most definitely were flash memory cards. I don't know what kind of a tool you have to be to think otherwise. Also, the controller that came packed with DDR 2nd Mix was certainly a floor mat.
Anyway, nobody has the money to launch a new system these days exact maybe General Motors or Phizer or something. Its so expensive and the initial losses won't turn into profits for a decade or more. Instead of developing the Xbox MS could have just developed a new cutting edge cruise missile technology, bought a small fleet of B2s and bombed every Sony and Nintendo building on the world because it would have been *cheaper* that the plan they actually chose. Only European courts would have had the balls to prosecute, and who cares about them?