Without the effort of many other people this project would not be possible. Here is a (incomplete) list of sources where i got important informations.
The text about variometer in rc modelling on the WSTech homepage was very helpful to understand how a good vario works: Variometer im Flugmodell (german text). Thanks.
Stackoverflow has been evolved to a giant source of information about (not only) android developement. Many gaps in the official android api documentation can be solved by reading the many code snippets and threads on this Stackoverflow.
RC-Network is a german forum for information exchange about rc modelling. I found a group of users there who help me in beta testing.
For her patience when i sit hours and hours in front of my computer or spend my time on the flying field.