I wanted to try out the Bluetooth library for J2ME (JSR-82) and made a small application to log the Bluetooth devices that surround me day-to-day.
Here is a screenshot of the application:

An all these bluetooth devices were found in only 10 minutes, while being on a train!
Current features
- Searches all 2 minutes for Bluetooth devices nearby
- Search can be started manually
- Shows a list of devices found and the time they were found
To download it, go to the
download-section of Sourceforge.
For more information go to the
Wiki at Sourceforge.
Further development
There are a lot of possibilities to extend the application. The most interesting would be to connect information from other sensors with this information:
- Location-Information: It would be possible to see on a map, where you discovered the Bluetooth devices
- Motion-Sensor: With access to the motion sensor, it would be possible to search more often for other devices, when someone is walking. At the moment the application looks every 2 minutes for Bluetooth devices nearby. For example the IPhone or the Sony Ericsson W910i has such a functionality.
Related work
BlueJackX - Same functionality as Bluetooth Logger, but this only works on Symbian-Smartphones.
Blooover - Does no logging, but works also on Java enabled cell phones and is used to find weak spots of Bluetooth devices
For desktop computers there are tons of applications, so I won't list them here. Check out NetStumbler for Windows, which is very popular for Wardriving.