Looks interesting. Always been a supporter of freeware. But make sure you read the guides completely. For example despite what your contact said the website doesn't just not mention the Trophy, it says the SW is to be used ONLY with the listed models.
I also note the ELM 327 (Bluetooth) works with TuneECU, but only with the Android version BUT note the reading of the map from the ECU and the reprogramming of the ECU,is not available with a Bluetooth-connection, for security reasons.
Still would appreciate a test report if you do get it