Everyone should remember that there's only a couple of people who have proper Pandora boards, and those people have little more than that (ie, they have a PCB + LCD, with no controls).
By the time devs get complete hardware, it is most likely that other people will get it also, so expecting finished or polished emulators by the time the Pandora is released is just daft.
As for SNES, there is a version running (as you can see from the posted videos), however there is currently no gui and no controls. When I get my Pandora in November, those features will be the added. In the mean time, if anyone wants to do some graphics for the gui, feel free. If its left to me, the gui will be text-based, which is probably not what you want.