Anyone hear about this? It's in beta in Russia right now. I've always wanted modern Halo graphics on the PC and now it's finally here... just not for NA. Here's a vid on how to play the leaked version: https://www.youtube.com/watch?v=1ahtRb3npPs Unfortunately you can't play online, this is just a leaked build.
It's more exciting to have the Halo 3 engine on PC. Right now you can't really do more than run around maps by yourself but I can see the community doing cool things with it. I've already seen some mods.