At this time, the Android ANT API (version 4.2) and the Android ANT+ Plugin API (version 2.0) are currently broken on Android 2.1; we will be investigating this issue further. As an immediate fix, the legacy ANT API will work on Android 2.1, just PM me and I can provide this. However, when developing ANT Android applications for other Android versions, it is highly recommended the new Android ANT and ANT+ APIs are used, providing better abstraction/easier development and allow for concurrently running ANT applications.