- MapDroyd is excellent if you want to store some OpenStreetMap for offline use.
- GPSLogger for Android is a lightweight GPS logger with lots of useful tweaks [control over time/distance of logs, OSM integration, auto email of tracks, and easy on your battery].
- EpiCollect developed at Imperial College London together with web based management tools looks as really good option for data collection (more info here).
- Open Data Kit (ODK) also looks very promising on data collection front. Check for instance ODK, GeoServer, Leaflet combo.
- AntiMap – newcomer to the market, accompanied by desktop package that can synchronize with video.
- Funf Journal – part of Funf Open Sensing Framework developed by MIT Media Lab
- GIS Cloud’s Mobile Data Collection for Android. Another data collection tool.
- OpenPaths – yet another data collection option from New York Times Company
