More specifically, yes you could definitely have different...

More specifically, yes you could definitely have different software modules for the one hand-held device:

- A skin cancer module: 'Based on the size, shape and colour, does this mole warrant further investigation?'
- A dermatology module: 'Is this rash characteristic of an allergic or infectious process?'
- A burns module: 'What is the grading and depth of this burn?'

Purchase of products like Woundvue will be a no-brainer to hospitals and GPs...I reckon they'll lap it up.
These will be amazing tools for doctors who are not specialists in these areas and currently reach for google, text books or a phone consult to solve the puzzles before them. It would allow you to document, share and monitor the ailment and results could be automatically uploaded to a patients electronic medical record... fantastic for continuity of care and meeting accreditation/documentation standards.