These guys keep making some nice updates. Of course we are talking about the True Blue team who has just come out with another firmware update bringing you to version 2.7. They had previously promised to include a clone checking feature which is included in this update. This handy feature allows you to find out if your dongle is a clone or the real deal. They also created a fix for compatibility issues with some recent 4.xx games. Check the source for a complete list of detailed instructions on how to check if your dongle is legit.
Source