Manwell,
But there is nothing in NAS that will make a huge difference to the participation rate here, nothing. Just because an MBZ changes to a CTAF? Have you really heard of any pilot that won;t go flying because there's an MBZ? Apart from those ones without radio who probably are too damned irresponsible anyway?
This concept that NAS and the Kings will kickstart an industry that has been stuffed by Dick Smith (User pays) and AOPA (demanding regulation changes) is a complete nonsense, and the sooner the pollies realise the better. Just stop stuffing us all around and leave things as they are. That's why private pilots are %issed off and don't go flying: things keep changing all the time and they can't keep up.
You asked for an alternative system: well here it is. Rename Class G, Class F (that's what it really is), make all towers Class C (solves the crazy problem highlighted by Chief Galah), allow VFR to operate in C airspace outside major airports without charge, mandate radio or transponder above 5000ft and in MBZs, which exist where RPT turbines go to more than once a day. It's ICAO compliant with 2 differences.