Who's doing it? iOS or Android? Current/past projects?
I've done 2 apps for Android, one for a research project and another for work.
The research project one was for a Smart Shoe project which allowed for real time graphical monitoring of foot pressure for diabetic patients at risk of developing ulcers.
The work one was an interface to monitor a patient's glucose levels over time and keep track of statistics.
Both apps utilized Bluetooth for communication.
I'm going to need an iPhone app ported to Android within the next month or so. Can you pm me your best e-mail if you have any interest? It's a simple app.