Starting today Hungry Jack's will be offering $2 whoppers through facebook.
The deal goes live today. Not sure if you have to like the page or not.
The terms and conditions are:
Offer valid from 6/12/2011 to 31/01/2012 at participating stores only.
Limit of one $2 Whopper per customer, per visit.
Present voucher with every food order.
Not valid with any other offer.
Can be substituted for Veggie Whopper.
Additional ingredients have an additional cost.
EDIT: as pointed out by the mod you could use the coupon from http://dataport.com.au/hungryjacks/hun0139/ AFAIK even though the deal is not live yet you should be able to get the deal as the staff have already been told about it.
Mod: Changed link to what we believe is the coupon page. Website is owned by a big marketing company so should be legit.
Mod: Official Hungry Jack Facebook page- Click Great Deals on the left which will bring you to the embedded Dataport.com.au page