There was an ADSB webinar put on by Jeppeson and Garmin. Some really good information on the ADSB implementation (in the US). I was mostly GA centric, so the information should be relevant for some of the questions regarding ADSB here in Oz.
There was opportunity to submit questions, and they have answered them.
http://ww1.jeppesen.com/documents/av...-questions.pdf
This question and answer is relevant to the Oz market, as ADSB has been mandated, albeit V0. The US has mandated V2. EUR will follow the US, and currently, Boeing and Airbus, as well as ADSB providers, will be supplying V2.
It will be interesting to see how this all develops, personally, I think it was a big mistake for Oz to mandate ADSB at this point, especially V0.