Ars Technica has the hopefully hopeful news that Valve has registered a European trademark for Half-Life 3 to cover "Computer game software; Electronic game software; Downloadable computer game software via a global computer network and wireless devices; Video game software." This could just be routine record-keeping, but it seems like Half-Life 3 might be the kind of thing that would give a nice boost to the launch of SteamOS. Just sayin'.