This would be very valuable, particularly if optional formats were available like Animated GIF, FLASH (normal and/or VR) or Quicktime VR.
At some level, particularly with microscope images, the stacked images are a bit like a cat-scan permitting us to view particular 'layers' or features hilighted by focus. We have to create the stack to generate a Helicon Focus image, so why not put them to some additonal use.
With the brain power behind this product I'm confident that Helicon could pull this off in beautiful fashion.