From his Living Photoshop Adobe Blog, Photoshop engineer Scott Byer had this to say regarding the switch to Universal Binary using Xcode.
By now you have probably figured out that we aren’t releasing Universal Binaries of our current application versions. If you haven’t, all you need to know is pretty explicitly spelled out here.
“But, c’mon”, I hear people saying, “Steve said it was just a recompile!” Or, “Back during the PowerPC transition, you guys released a patch!”
Well, this time is different. And I really wish it weren’t. But let me tell you how…