DaveyD said:From the way Steam works, I guess if you already own and have either Half-Life 2, Counter-Strike: Source, or similar installed, you'll have the 2-3GB of Source Engine files already, so you'll have less to download. Still, it's a lot of content there, and I don't think I've ever seen my Steam downloads anywhere close to my full download speed, so hopefully they'll have some option of downloading the cache files from elsewhere.
Sadly not, since my NDA has finished i can say it uses some steam files, but that only makes up roughly 15-25% of the whole download.