I want to develop an Android based aircraft TCAS system, that uses data supplied in an ADS-B protocol. It will need to interpret the received data, display the stations broadcasting the data on a radar type map, and calculate the risk level of a future collision with you. It would make this calculation based on the current positional data and a calculated future position (or trend maybe a better word) based on the heading, height and velocity of the other station(s).
The main word to keep in mind is 'simple'. I don't want a cluttered screen with too much information, just a simple radar type view with the targets as arrows showing speed and track, alarms triggered if collision calculation reaches a certain threshold.