The headline grabbing 'concession' whereby IHT threshold is doubled is no concession at all.
These new limits were already available to all. Many people who are switched on (or are sensible to take profesional advce) had already set up a simple mechanism to utilise both Nil Rate Bands on the final disposal of their property.
This is a simple mechanism called a Discretionary Will Trust and which can be set up at very low cost by modifying ones will.
How cynical can Gordon Brown and his lackey chancellor get?
It proves once again that if you are sensible, take advice, work hard and save you will get robbed by Labour.