• Nintendo Network ID's need to be more like PSN ID's and XBL Gamertags... Easily transferrable and my games are tied to my account not the hardware.
• More storage. Nuff said, granted external HDD's are a thing but I like to download my games nowadays so people aren't stealing my discs when I'm out of my house. But I like having enough space to START and being able to upgrade if I want to. I shouldn't be forced out of the gate.
• Nintendo eShop should be accessible via a browser. I have work, and then I like to go out in town, and I might wanna buy a PSN card or XBL gift card... Or hell maybe when I get the machine get a Nintendo eShop card and use it right away. This ties into my first point about NNID's, we need to be able to use them to easily purchase games off the eShop without being on our console like we can for PSN/XBL/Steam. It's simple.
• Better third party support. I'm not saying more, because Nintendo failed with that. I'm saying better support that they all ready have. How many games have third parties released and half assed? They need to quit doing this. Simple.