http://uk.gamespot.com/news/valve-trademarks-half-life-3-6415182
What does this mean? Personally, I don't think anything. It'll probably be another decade before they release the thing anyway...
Anyways, is this the moment you've been waiting for? Have you prepared for the social media sheeple to explode in a frenzy of '#hl3confirmed' because of this news?
I personally am sceptical. Even if they have trademarked it, doesn't mean we'll see anything soon. But still, news is news. (Assuming of course this is legit)