One issue that seems to come to mind for me is, even if all these different plans etc. are initiated and working - in about 10yrs or so, we will still have the same problem all over again, albeit at a higher house price.
Does anyone else get the feeling that sooner or later, all these different options won't make a difference anyway. Despite any social group and govt. intervention/incentives - house prices will become beyond the ordinary person, but more importantly - will NOT stop there. So whilst we can bandage the solution somewhat for the time being as prices are'nt too far past affordibility, sooner or later it IS going to happen that we end up like New York, London etc, and there really won't be any solving it - the market will just have to be accepted for what it is?