Fortunately, looks like the controllers will function disconnected - but I'm just wondering how durable those controller slide rails will be.
One of the problems with the NDS series has been that the screen hinge often gets stressed and broken through normal use.
Here, the 'hinge' will be the connection between the controllers and the device you're connecting them to. Just looking at the grip style, I'd thing it would be a constant thing for players to tighten/angle their grip during play. I'd be interested in seeing the hardware reviews before buying to see if stress on those rails might flex the entire shell of the device over time.
On a similar note, I'm wondering if those slide rails also function as a controller charging mechanism, and how that might play into durability.
Still, looking very much forward to playing the upcoming Zelda game someday, just have to decide if it'll be on this thing, or buying a cheap used WiiU eventually.