Let's see, an official statement from Vivendi or a rumor from "sources close to Valve". Hate to burst your bubble, Spiffae, but I'm not exactly filled with a lot of confidence here. I'd love for Vivendi to be wrong, but we all remember what happened last time.
It doesn't matter what happened last time. I do not believe that anyone ever lied about the release date. There is an explanation for this, and there was an explanation for that.
I shall personally hope for no delay, but it is true that the Vivendi source sounded a lot more reliable, as it is mentioned by name, and I have some difficulty believing something from anything called "the Inquirer".