General election: what have we learnt so far?

a) Gordon Brown wants to be seen as a team player (hence massed ranks of Cabinet behind him for election announcement)

b) David Cameron wants to be seen as Barack Obama (hence shirt, rolled up sleeves and people behind him when he speaks!)

c) Nick Clegg wants to be seen with Vince Cable (hence Vince becomes the first non-leader to ever have his picture emblazoned on a party leader’s battlebus)