UEFA have opened up their fantasy football game. Link: http://en.euro2012fantasy.uefa.com
Its similar to all the existing ones, like the premier league, but its closer to the World Cup one from 2010.
There's really only one BIG rule change to note with this one:
Defending bonus:
For every 5 recovered balls (the total of clearances completed and gaining possession tackles) -1pt
General rules:
100m to start off with
2 players per team
Captain gets double points
No Vice captain available
Captain can be changed during the gameweek, same as during the WC2010 game.
1 transfer during the group stages,
unlimited for quarter finals
8 for semis
4 for final
This is also similar to the World Cup game, where players got an attacking bonus for bringing the ball inside the box. Although, its pretty much the exact opposite of that!!

Anyway, first deadline in June 8th. Get cracking!