I can do incremental testing on NFC devices, If you don't have NFC devices
application requirements (use the least possible API so it would work in Android 2.3.6):
-run on NFC phone
-Once two phones are tapped, NFC is used to pair the bluetooth and setup a connection (without user involvement)
-then able to transfer a photo from gallery over the new bluetooth connection (user selects photo to
transfer)
No fancy GUI, simple buttons will work