It will be no joke if Boris wins and becomes London mayor. Thankfully Ken Livingstone has his own massive fanclub and is a serious political operator as well as being a brilliant mayor - so hopefully he will trounce this Tory clown.
Boris will have the might of the Tory press (including the London Standard and Metro (Daily Mail owned) and of course 'the london paper' (owned by Murdoch)) behind him roaring him on. They could hardly distort Livingstone more than they already do, but now they have a Tory candidate (and he will surely win the primary) that has populist appeal (I am not too sure why this is - the man is an idiot reactionary bigot - but apparently a lovable one).
Boris will do all he can to make cutbacks to London Transport after all the work Ken has done. Free travel for under 18s will be the first to suffer, then over 60's free travel on trains and tube. From next year the mayor might finally have some real powers to do something about housing and the recycling mess that the local boroughs have got themselves into but a Tory mayor would continue these problems unconcerned at the plight of those who cannot afford somewhere to live. London cannot afford Johnson - I have faith they will see through the Cameron PR drive that has so far been impressive.
The campaign in Ealing-Southall has 'stole a march' on the Lib Dems by playing on the factions in the Labour Party. This was the height of opportunism and full of risks, but Cameron was media savvy enough to know that stealing councillors and good looking donors from Labour (even within days of their campaigning for Labour) is a coup de grace and held little risk in a seat where they needed a miracle to win. It could backfire but it would be difficult for Tories to do any worse with ethnic voters so it probably could do them little harm. Cameron is proving himself a formidable player of the media - Labour may have a seven point lead at the moment but we have to be on top form against this Tory spin machine.
Lets hope serious politics and actually having policies will win against Tory media spin - for the sake of democracy it needs to.