I got the latest version of retroarch (dev build).
Did you fix the KitKat problem where retroarch can’t handle zipped roms? I tried it, and I was able to load unzipped roms but not zipped ones. How do I configure the temp directory that retroarch uses to unzip roms? (The problem was that retroarch was trying to unzip in the same directory as the rom, which no longer works on external SD cards.)