http://www.dlapiper.com/files/Uploads/Documents/DLA_Piper%20...
Quite a few countries chose an opt-out system, which appears to be workable. Quite a few (most?) countries are still debating what to do or are intentionally or unintentionally dragging their feet (this is very typical).
The UK chose an extremely strict opt-in system, which is complete bullshit and unworkable in practise.
Now, I know it's "de rigeur" for the UK to blame Europe each time something bad happens, but in this case they only have their local government to blame. So please, stop calling this a European problem and tell it like it is: it's a UK problem brought onto them by a stupid government. The sooner the people of the UK realize they have their elected officials to blame, the sooner this can get fixed.