looked for a thread on this and couldnt find one. im getting a dsi soon and im was wondering whats the diffrence in supercard dsonei and supercard dstwo. Does onei support rts and rtc? i could care less for gba playback
There's pretty much no good reason to get the DSOne now that the DSTwo exists, it's worth paying the extra $10 because it'll be the more supported flashcart.
Even if you don't want the GBA emulator, the realtime menu of the DSTwo is fantastic, there will be a video player that can play common video formats, there's a SNES emulator, and more to come.