Valve has, without comment, released the video you’ll find below to announce Half-Life 2 for the Mac. To do so there’s brand new pre-rendered footage of Alyx, along with other Half-Life 2 familiars, which is clearly something that’s going to be worth a watch. It’s brief, it’s to promote a million year old game, but hey – it’s more HL2. Also, have they hidden any clues in there about anything else? It seems the sort of thing they’d do, and you seem the sort of person who’d be able to spot it.