hope Springs eternal.
Fans will wait forever for third part to be announced.
Give GabeN and his company Valve a chance.
Once he give the notice and assures that it will come out soon, then rejoice but if I'm also tired of waiting don't worry I'll consider of not hoping anymore with the release. As a gamer, HL3 is really interesting noticing that the gaming industry is booming today. Valve knows the market and how valuable this release would be.