There are some thoughts that Kimi will be back at McLaren from next season and how it would pan out. On the whole I think the whole Kimi + Ferrari deal never really seemed right. It may have be a bit of luck that he won the 2007 championship, but it was a bit of bad luck that made him miss out on the 2003 and 2005 championships.
On the whole, I think he's a better driver in a car which has "stopped development". The 2003 challenge was on the B spec 2002 McLaren with the 2003 car failing to pass FIA safety tests amongst other things.
If he moves back to McLaren, I buying a Finnish Flag!