Paul - good post
I do not think Acacia will be in Europe anytime soon, and when/if they come to Europe, then they are in for a surprise, since the european legal system(s) doesn´t quit work the same way as in the US. Heck, Acacia do not even have patents in many of the new countries/states joining the EU next year.
If Acacia or any other patent parasite are looking for a real battle, then come to Europe... their whole legal system is build by socialists