I have ZD camera, so far no problems, except dead firewire
I don't have a ZD, but demo'ed one in a shop.. I was very impressed with the handling.
Mamiya lenses are great value for money... I say this as a H1 user who can hardilly afford the lenses for this system.
In this sense mamiya can be seen as a viable alternative to High end canon kit, but with the 22MP 1DsIII coming, I would have thought that the ZD is already on the drawing board with presumably the 33MP Full frame Dalsa chip to justify a higher retail price marketing wise. The MKII should be esier to get to market, as they can just swap sensors and upgrade the electronics.
I hope a ZDMKII will be announced soon - nothing wrong with an early announcement as long as they keep to teh dealine more or less (thins time)!! This would be a real coup over Canon, who are inadvertantly eating into the MF digital market at hte bottom price bracked (the ZD serries)