Some people have very short memories, over the last 8 races of 09 (i.e from Hungary onwards) only Lewis Hamilton scored more points than Raikkonen:
The Ferrari was a huge improvement over the rubbish it was at the start of the year, and it was only toward the end of the year they gave up on the development front to focus on 2010.
Anyway in my opinion the championship is by no means sorted even if Alonso does well in Hungary, and a brief look at the championship history over the last 10 years should tell you that. All it takes is one DNF, a driver error or mechanical failure at any track and his lead doesn’t look quite so comfortable.
Raikkonen in 07, Schumacher catching Alonso in 06, Button nearly being caught in 2009; there is still plenty of racing left to do.