Smartglass. And it's not cooler on a tablet, cause if you're holding your controller, you're not holding your tablet, while both on a Gamepad and a Vita you hold everything in your hands, so Smartglass is actually significantly worse.
That's why I'm cheering Wii U and PS4/PSV combo, I want to see more, as this could really add something. For now - I hope Wii U gamers buy games that utilise these features thus helping them become a new standard.
Wii U is a GCN 2 - I called it months before the release!
My Vita to-buy list: The Walking Dead, Persona 4 Golden, Need for Speed: Most Wanted, TearAway, Ys: Memories of Celceta, Muramasa: The Demon Blade, History: Legends of War, FIFA 13, Final Fantasy HD X, X-2, Worms Revolution Extreme, The Amazing Spiderman, Batman: Arkham Origins Blackgate - too many no-gaemz :/
My consoles: PS2 Slim, PS3 Slim 320 GB, PSV 32 GB, Wii, DSi.