Well it looks like Rick is copy-and-pasting a stock answer to multiplayer questions at this point (not that I blame him). Two people have already pasted it on the "info from valve" thread, so I won't be redundant and put my email there. The reply is interesting enough to start a thread on, though, IMHO.
Here's what Rick had to say (to at least three of us):
The Source engine contains support for multiplayer gaming, and Valve
plans to release several multiplayer games at the time HL2 is made
available. This week we've announced Counter-Strike: Source. We will be
more releasing information on the other games and how they will be made
available to gamers in the coming weeks.
Rick
Valve
Here's what Rick had to say (to at least three of us):
The Source engine contains support for multiplayer gaming, and Valve
plans to release several multiplayer games at the time HL2 is made
available. This week we've announced Counter-Strike: Source. We will be
more releasing information on the other games and how they will be made
available to gamers in the coming weeks.
Rick
Valve