I've noted several comments that the cases appear to be simple and targeted at lay people - mainly because our blog showcased our 'demo' case, which was built to introduce users to how the app works. Most of the other cases require a medical background in order to be solved properly.
Thanks for the comments on the marketing pitch - I guess that we need to fine-tune it ! I like the idea about how some simpler cases targeted at lay people might make it appeal to the general public as well.