It begs the question once again in my mind whether the Tories are being too cautious, and whether Gordon Brown's response will now be to pledge to scrap inheritance tax altogether, or, at the very least, exempt all family homes from its ambit.
Restricting inheritance tax to a "millionaires only" tax is a surefire voter winner with the aspirational middle-classes the Tories need to win back, and Brown is far too smart not to realise this.
The Prime Minister has already shown himself a past master in the art of political cross-dressing. Surely this is a case for more shameless stealing of the Tories' clothes.