What are really the problems with the SD-1

Probably like some other Sigma users, I got mad when the SD-1 was priced so outrageously, and I have not kept up on the threads concerning the camera. Now, I plan to buy an SD-1 when it becomes available on the market at the new lower price. However, the frustrations with the old SD-14 are still a vivid memory, and I want to learn from the experience of others about the weak points and idiosyncracies of the SD-1.

I believe that the IQ problems reported by some people relate directly to the Sigma lenses not having the performance necessary to use the capabilities of the sensor, and I plan to convert the lens mount to take Leica R glass. If this perception bout the IQ is incorrect, I woiuld appreciate hearing aboui it. Any info concerning problems with the processing engine, odd color rendition, camera lock-up, or any other similar problems would be much appreciated.