The discovery of the Bluetooth services only work very rarely. When there is a little luck and the service does get discovered the communication between client and server work oddly, the data from client to server is echoed back to the client and server does not receive any data to it's socket.

This behavior has been detected with device pair N950 - N950 and with the attached test application.

The attached example is modified version of the QtMobility example btChat, the .ui files were removed and replaced and the UI was constructed manually. The Harmattan platform seems to have problems with QtDesigner files (the UI was modal and it couldn't be swiped away at all!).