Yesterday the Czech Republic's President Klaus signed the Lisbon Treaty, rather unexpectedly, with no ceremony - he just did it. He warned a few days ago that, "the British must hold an election within the next two weeks if they want to stop this," and we didn't.
The Treaty comes into effect on the first day of the month after full ratification - so it applies from the first of December. On that day we lose 60 vetoes; any residual control over our fishing grounds, and will become Citizens of Europe; although we don't (yet) lose our member state citizenship. (They're not called member countries anymore.)
This puts the Conservatives in a little tizzy. They promised a referendum, but now Lisbon is a done deal a referendum wouldn't change anything. The best they can offer now is a referendum on any future extensions to the treaty and to be mean to Europe in some other way.