there are a few issues with this,
Why would u want to buy the Source Engine from valve if the source is out on the net
I have a feeling most game developers have d/led this the source code and are looking at how valve is doing some things and stuff that valved did will prob show up in certain games or the theory of this will.
now the other thing is all the network code and steam data was in there which will cause a fucking headache for trying ot keep a game cheat free. We all know when someone is cheating in games it just makes it not fun to play anymore. IF enough lame ass script kiddies start using exploties nobody will want to play.
Of course they can change a few things here and there before the release but still the main system is there for all to look at.
