There are a lot of factors, such as Retail and Mod version issues lining up with Half-Life patches to support the new Valve technology. I dug up some screenshots for those of you that haven't seen what it looks like yet. These are not screenshots from the final version, the final version will be more refined. Screenshot 1 Screenshot 2 Screenshot 3 Screenshot 4 Screenshot 5 These images suffer from jpeg compression, so they don't look all that great compared to the originals, sorry. The multiplayer test was released today.
Much fun happening on the servers, here's a list of mirrors to download it from.
Tyrall.net claancy.cwru.edu - not sure about this one, strange filename. Those links are in no specific order. The server I used was Gaming Frontier. Will add more links as I find them. I'm not sure if the hosts are removing the files, or if the server is just pushing its limit.