I hope it gets enough interesting exclusives. I don't care about 3rd party games because I already have a PS4/XBO. System is great for people that want to play full-fledged console games on the go. That's not me, though. I pretty much just play at home, so Nintendo needs to sell me on...
Portable mode doesn't mean anything to me. I'd never have a reason to use it. It looks alright. Controller is good in theory, but I need it in my hands to see how it feels.