That might be good, it would take a lot of work to rewrite the slicer in C/C++ to take advantage of the parallelization. I don't see a price quoted for the SDK, so that does not give a warm feeling.
Otherwise it is just an ARM 9 platform, so like a Raspberry Pi but more expensive.
I think a promising platform is still UDOO, also $99, but more usefully with an Arduino Due built in, so (when its ready) the RAMPS-Due will plug straight in, and all (most of) the familiar RepRap software will run without much modification.
Another contender is BeagleBone Black + Replicape, haven't seen any shipping prices for that yet. I think that is a whole new set of software though to drive the Replicape.
I have a prototype RAMPS-Due being built right now, progress is a bit slow due to the weather...