You are right to raise this as an important topic as I believe the 1947 Planning System is directly responsible for the housing crisis we have today. I don't think the NPPF is radical enough. It won't prove instrumental in encouraging more development, probably the reverse. The problem is the concept of 'sustainable development' and the idea that housing is pollution. We really have to challenge this. The solution is not to define sustainability better or have more 'sustainable development' but to oppose this self-limiting concept - a concept that kettle's people onto brownfield land in the least attractive areas. That's why I support the Dale Farm Gypsies. I see them very much as being in the vanguard of challenging this protocol and the snobbery of the Green Belt.
As to the reason why Inside Housing has been quiet on the issue of late, I suspect it is only because there is little further to say on the NPPF until it is published in March - most likely on Budget Day.