So, unrelated to anything: has anyone gotten the DOSBox core to work, like... at all? I have a mess of old EGA games I'd love to push through some filters but I have yet to get it to do anything useful.
No Mednafen GBA?

That is the only single thing standing in the way of Retroarch being the best place shy of real hardware to play the Mother 3 translation.
Super pumped for a PSP release, though. I would love to get rid of the mess of garbagey-interface emus on my Go. And you left out one of the bigger pieces of news from that blogpost -- a buildbot and official nightlies!
Yeah, I get by with RGUI which works fine for loading ROMs and tweaking shaders, but I would love an interface that actually made the per-core configs vaguely workable.