Well until valve can conferm or denwhat is going on with this so called beta leak. Some one actually compiled and has run it to play!! with pics, catch them while there hot.

A WEBSITE Other people on different websites also appear to have compiled Half Life 2, but others have warned that the compiled source code may contain viruses.
In short, confusion still reigns about the whole Valve/Half Life 2 affair, with a promised statement still failing to materialise, as far as we can tell.

Valve, according to some web sites, said that only some source files are available, and the game is incomplete.

Whether the game is incomplete or not, the story is certainly incomplete, that's for sure.

For link to pics and more go here.