I'll continue to try to "force" the discution
Multiplayer on the go seems to be the biggest feature of the console. Outside of 2 player on the same screen, it does appear that two consoles can be used to play 2v2 versus, using a simple ad-hoc connection.
I'm intringued by the splatoon part, where 4 friends play localy against an online team.
Wonder if nintendo will add some sort of envolved "street pass" features to the whole experience.
Anyways, once more, I fully expect the oficial presentation to be heavily focused on the "real life" social aspect of the switch, and am willing to bet my hat that most of the big reveals will be based on that.