Did you read the reviews of the "hack" on the software download page:
"its not BT hack!!!!!! Its stupid joke!!!!!"
"Ask the victim if she want to accept the connection... Where is the hack?"
Your not super stealth when you ahve to apporve the connection. All Bluetooth software will work it you accept and trust the connection.
So show me a hack.
Allow me to connect to a BlackBerry without the other user knowing, having to approve or me having physical access to the device. That would be a hack. Not creating a trusted connection the conventional way.