Local home builder is currently has teh following offer as an incentive to buy...
Buy 70% now...pay for 30% later.
Basically - you get a mortgage+deposit that adds up to 70% of the current value.
The remaining 30% is interest free for the next 10 years. You have to pay it back either when you sell (by which time you are likely to be in negative equity the way things are going) OR after 10 years (when you may or may not be in negative equity) whichever is sooner
Sounds like a spin on teh sub-prime l=ending to me