Back in 93 or 94 I remember seeing one of these pass-thru devices that Chips and Bits were selling in their ads in gaming mags. It was supposed to allow your SNES to play NES, Fami, SNES and SuperFami carts. The SNES and SuperFami play is understandable. You don't even need a pass-thru for that. However the NES and Fami play is what I am most interested in. Is this even possible? Perhaps it was more than a pass-thru? It was so long ago I can't recall whether the devise had a selector switch or how many slots it had. (I'm assuming 2 - 3) It wasn't a big deal to me at the time but, now I find that I would really like to have one of these. I've done some searching on the net for simular devises but, they came up dry. Does anyone have an information about this type of devise?