The BBC reports the predicted seats for the main parties (out of 200) as:
"National Coalition Party - 44
Social Democrats - 42
True Finns - 39
Centre Party - 35"
Percentage-wise, the True Finns will have gone from 4% to 20% of the vote. Their platform is eurosceptic and anti-immigration, with the bail-outs of Greece, Ireland and now Portugal helping to boost their popularity, as the idea of sending money over to other EU Member States doesn't seem to have been defended very well: it's a lot easier to sell a simple rejectionist message than explain the complex economic case for supporting other countries. That's not to tsay that there isn't a need to challenge the current approach to the European debt crisis - and the worrying signs of satisfaction at the measures taken so far. Though the methods and ideas so far haven't been far-sighted enough, going into reverse gear would make the situation worse.
"The party's candidates are a motley crew and amongst them there are distinct anti-immigrant views. Neither does the party leadership have much sympathy for a place for the Swedish language and Swedish teaching in Finland. Nor for development aid, climate policies and so on. The general impression is that of deep conservative values and a nationalistic spirit. The word extreme right is not used in Finland. The party's future shape depends however on which of the party's candidates finally win a place in parliament." - EU Observer.
Given how close the seat numbers arre for the 4 biggest parties, it is possible that the True Finns could even end up in government. Again, it's hard to know whether the best approach would be to freeze them out of coalition possibilities or not (which takes us back to the question of how to deal with such parties generally). I haven't been following Finnish politics closely enough to know how extreme the True Finns are in their rhetoric and policies, but from what I've read they seem quite extreme. I hope that the mainstream parties start digging in and re-vitalising their grassroots.