To be fair, we do know a little about the Ataribox, even if it is all a bit vague. It will have an AMD based processor and Radeon based graphics, USB ports, an ethernet port, and SD cart slot and HDMI. It is Linux based, will come with "hundreds" of preinstalled games, and will allow you to install additional software. To me it looks and sounds pretty damn cool. But I don't trust Atari either and I wouldn't consider purchasing it until and unless it becomes a real product.
However, while the Ataribox potentially has appeal for me, I don't get the whole Roller Coaster Tycoon thing at all.