also, since the 5dmkii uses almost the same everything that has
existed before, moreso than the other bodies here the development
cost should be lower (well there is the video, however that will be
spread across all models shortly)
I disagree again, while a lot of the technology is based on previous
models, it is most certainly not the same. For example, take Live
View and movie recording as you have pointed out. Movie recording on
a camera that has Live View is just a firmware issue. HOWEVER, that
being said there is much more to it actually working properly than
that. These sensors generate large amounts of heat when in these
modes. These sensors have to be optimized for proper heat dissipation
and that is a monumental challenge in terms of design and engineering
to get this to work. That's why the 1Ds Mark III will never have
video. The heat generated between the sensor and the recording medium
would be too great and cause issues. Also - don't forget the Dev cost
of Digic 4. Thats a new chipset unique in this camera (so far)