Epic has finally decided not to support cross-platform online play between PC and PS3 on launch - although it may appear as a future addition.
Mark Rein has explained that the biggest challenge in doing cross-platform play is synchronizing the builds such that the build on the PC is 100-percent compatible with the build on the PS3.
"Unfortunately (or fortunately) when you [develop] games on console you have a lengthy certification process to go through each time you release anything new," Rein said in an IRC chat, reports Shacknews via the IRC Q&A session with Epic set up by BeyondUnreal.
"We looked at how this would impact our ability to respond quickly to things happening at internet speed on the PC side of the equation and realized that this would not be in the best interests of our very loyal PC userbase because we would constantly be holding on to updates to wait until they passed cert on the console platform."
Rein went on to say that cross-platform may be introduced down the line, but that the likelihood of that happening is still small.