I really wish I was in Europe now to participate more in this. If you ever wanted to get info politics (even only a little bit), now is the perfect time. Next elections into the Bundestag and four years later into the gov't. And in ten years the European commissioner for IT things will be a Pirate, harrr harrr!
When following politics I sometimes secretly wish I didn't move from Germany to Spain, where the political scenery is a tad more... predictable.
That being said, I see absolutely no reason why the Pirates should be part of the government. Germany has had almost 20 years of policy blocking and mindlessly bullying oppositions (from both sides of the political spectrum), but maybe this can actually change with the Pirates - an opposition that has no problem in granting the governing parties their successes.
They could (well, there is an Pirate party, and it may even get above the magic 0.01% threshold...), but the major political players don't change much, and definitely not as rapidly as in Germany.