Do my eyes deceive me, or does that mean B4 is the last time we'll have to download a full release? I mean, if so, I can probably get at least a few more people playing this again.
With uncooked builds, you only need to replace some contents, something that previously cannot be done with the cooked builds.
So.... I assume you would tell us to download the proper UDK version from www.unrealengine.com/udk, then get the source codes of the game from you?