I hate to be a "Debbie Downer" (SNL reference), but this doesn't seem like that great of a deal.
The MX-1 reportedly has better image quality overall, mostly due to its awesome lens -- this according to our Administrator, who has compared both. It is still available from Adorama for $250, and it comes with a lens.
Also the K-500 is available for $400, which will blow either away in terms of IQ, and it comes with a lens, and twin control dials! Some have complained that the K-500 doesn't show focus points in the viewfinder ... but at least it
has a viewfinder, and a pentaprism to boot!
I am a Quser (the Qlassic Q, in blaq) myself, so I understand that the Q system is not about pure image quality. I just mean that this doesn't sound like too compelling of a deal.