[AChimp]

Silicon Knights raises some interesting issues. They're basically claiming that Epic has been delivering buggy versions of their engine to to their licensees, giving Epic's games the advantage over anything a third party can produce with it.

Now, undoubtedly the developers at Epic are going to know what to do with their own stuff better than anyone else, but if they've signed contracts stating that they're going to be fixing bugs then they're obligated to start delivering updated engines to other companies as the issues get resolved.