UPDATE: Full version 500 of the firmware is now available for all PW TTL units. Download via your Pocket Wizard utility application.
There is an updated firmware available for the Pocket Wizard Mini TT1 and Flex TT5 available for download here. It is Beta firmware but don’t let that put you off because the previous official version was a work in progress. The good news is that additional functionality has been added to the Mini and Flex as well as 7D compatibility. A few bugs have being fixed too especially those that affect 5Dmk2 user.