I was recently sent a link to an interesting publication.

The Multiple Sclerosis Performance Test (MSPT): An iPad-Based Disability Assessment Tool DOI

As someone who has known a number of MS patients I was very much aware of the difficulties in accurately assessing the progress of the disease. The MSPT application uses the iPad as a data collection platform to assess balance, walking speed, manual dexterity, visual function, and cognition. It also provides an objective analysis and comparison with a reference population.