I was referring to it within the context of the period in which it was introduced ... I'm sure the resolution would have been increased over time
I see two problems:
1. the extremely low resolution makes it useless for "medium format" standard of IQ (the Dicomed Big Shot was 16MP instead), so I doubt that many MF users would have been interested ... at least not interested enough to actually buy it, though maybe some would lust after its size in internet forums!
2. It would not and has not been scaled up to higher resolution, probably for a combination of reasons I hinted at in my previous post
a. its target market of X-ray machines probably does not need greatly increased levels of resolution
b. its cost effectiveness relies on using that huge 50x50mm Canon stepper so as to make it without stitching, and that stepper is limited to very low resolution sensors by its large 0.5 micron minimum feature size.
And for all I know, its price could be astronomical.
This seems to be another case of the mistake of putting excessive emphasis on one virtue (here sensor size, other times high ISO ability, DR, resolution, etc.) and ignoring sometimes painful or fatal trade-offs involved (here, very poor resolution and/or huge cost.)