I get a business news update each morning with my job, there was a piece in it about Telecom.
They are basically talking about spending upto $500 million on a new mobile network, since Australia is likely to be without a CDMA network in 2008. Strongly hinted however they are going to use UMTS/w-cdma.
Seems like common sence in a nutshell, Telecom is going to have a problem if their major roaming destination no longer has a compatible network for users to roam on!!