*all near perfect*
Other systems are a secondary concern
Run DS game roms (this is a secondary concern, as I only plan to use it to playtest).
All in all, I want near 100% compatibility and near perfect emulation. I've heard the SNES and Genesis (?!) isn't perfect yet, but that has nothing do do with the R4 itself, correct? Btw, isn't the Genesis simple hardware to emulate? Why doesn't the sound still work?
Assuming future firmware updates and future updates to the emulation programs, the R4 is all I'll ever need for good emulation?