I just want to say this, just because I saw someone say "I believe N64 did much better than Saturn." This is so utterly true it's RIDICULOUS. Walk down the street and ask random people if they know what the Sega Saturn IS, and you might be shocked. It was so utterly off the RADAR of America, and other places, it isn't even funny. Not funny especially because I have one, and I still play it, and it had some INCREDIBLE games (Sega Rally, Virtua Fighter 2, Guardian Heroes, Dragon Force, Panzer 1, 2, and Saga, etc. to name a bare few) that made it more than worth the price (perhaps even the original asking price of $450...haha...although I got it when it was much cheaper). The N64 blew it away by a million leagues, and there's absolutely no argument there. People who say the N64 was a failure don't realize how much money it made for Nintendo, and they downplay the fact that in an average college dorm, you could find many, many people playing Goldeneye or Mario Kart, at least. If it was a failure, it was a failure that was enjoyed by half of America at some point.
Okay, aside from that, I admit that it would be cool if we could play GCN discs in the next console, but it's not really a big deal to me. It would be easier for people like me who have been gaming for a long, long time and keep everything and try to keep everything hooked up (I think I should just go ahead and get another RCA splitter-box.....ugh....). So, for that reason: cool. By the same token, let's keep the thing a gaming rig where EVERY LAST DOLLAR is spent by Nintendo on making it the best console available (and not the console with the most features, please).