> Don't hold your breath. In case you haven't noticed the industry is going > increasingly button-less over the past several years and that's not a trend that will > be reversed anytime soon. You might instead look into external peripherals to do what > you're looking for.
Not completely true... there is a whole bunch of handheld gaming machines PSP-alike but android based being sold for cheap. They are at present very low level still they are sold for cheap with a whole bunch of emulators (included mame4all and bundled roms ) And these machines has the full button set needed for proper playing. NOT the machine you will be able to use this mame with....