This system put together by the Issaquah Robotics Society uses 6 tablets networked to a central laptop to collect data. Each tablet has a custom android app and is set to follow a single robot. Scouters will press buttons for different actions on the field, which send real time data to the server through http. The server then inputs the data to a PostgreSQL server.
The current plan for the next season is to smooth out operation of the system so it can be run by anyone, without any console commands or special setup, as well as to add more integrated data viewing to the server website.
I ended up also making a console based attendance system for the team. It uses a unique, hidden, numerical code for each member so we use our student ids. We have a barcode scanner that enters in the number, and if it is a new one it prompts for a name. It saves that data in a small, relatively encrypted file and makes a csv sheet with the times. Download exe here.