I came across this offer on internet today, not sure since when it's been running though. $29.90 p/m for unlimited ADSL2+ broadband and no contract is the cheapest plan I have ever come across for unlimited broadband internet. So far I was under impression that TPG's quite-popular $59.99 p/m unlimited ADSL2+ plan is the cheapest in the market, but it doesn't seem to be the case. Apparently Dodo has $99 set up fee, but even TPG has a similar fee. Please ignore it if it's a repeat post.
PS: The Dodo website says this plan is for metro-areas; not sure which areas it covers.
normally active phone line is $30 for a month which it is $59.99.