Just saw this on auDA's website:

  http://www.auda.org.au/about/news/2003091503.html

AUSREGISTRY ID.AU "FREE TRIAL" PROMOTION

AusRegistry has launched a special promotion for id.au, the domain space
for Australian individuals, commencing 15 September 2003. 

Up to 50,000 id.au domain names are being offered on a "free trial"
period for 6 months. Once the trial period is over, the registrant must
pay for their domain name licence if they wish to keep it. 

Please Note: For the purposes of the promotion, auDA has authorised an
exception to the Transfers (Change of Registrar of Record) Policy
(2003-03). People who register an id.au domain name during the
promotional period will not be permitted to transfer their domain name
to another registrar until the end of the 6 month free trial period. 

For more information about the promotion, please see MyWebname.com.au. 

kim