deium,
I realize that the Quark is not an ARM device. I only mentioned ARM because ARM doesn't make chips, they license the designs. The lack of information from intel on the Quark within the Edison is disturbing, but could be attributed to an NDA if intel had licensed the tech. Your clarification kinda eliminates that possibility if it is true, that being that it is simply a pentium class part that was shrunk from the original (and defective) die. The floating point bug doesn't really put me off, there are ways around that problem.
My concern is that, as a maker, I cannot design boards for this thing because there is no way to know how the GPIO is muxed between the CPU and MCU. I could, for instance, assign GPIO 8 through 13 for my boards, hoping that they are tied to the MCU, but if intel later releases information stating that only pins 1 and 2 are tied to the MCU directly, then I am screwed. Ideally we would have documentation by now indicating which GPIO pins are tied to specific peripherals of the MCU, but from your description of it being a Pentium, there really aren't any peripherals to speak of.