With just a little imagination, you could easily make yourself a pretty cool mobile app using Open Data Kit.
The Screening Room
Open Data Kit is a free and open source set of tools which help organizations author, field, and manage mobile data collection solutions. The flexibility that open source offers means that the use cases for these tools are very broad. Check this introductory video about ODK tools which explains a rural medicine use case.
For the past 10 years, Phil has been working at a public library in the Washington D.C.-area, helping youth and adults use the 28 public Linux stations the library offers seven days a week. He also writes for MAKE magazine, Opensource.com and TechSoup Libraries. Suggest videos by contacting Phil on Twitter or at pshapiro@his.com.