According to Michael Spencer (the Tory treasurer) corporation tax could be cut towards 20%. Go further I say, 10% will make the UK a business haven once more.
It's all welcome (as is the hope that the 50% rate will go) - in the long run these cuts will only increase revenue. I know unfunded tax cuts don't go down well at the moment, but it should aid recovery and help us in the medium to long term.
Next, follow Boris' lead, stand up for the City, oppose the EU hedge funds directive and whatever else they want to damage the City with.