When E3 is going on, I always like to see how many Nintendo characters/franchises are coming out...
Mario - Mario Sports Mix (Wii), Mario Vs. Donkey Kong: Mini-Land Mayhem (DS), Paper Mario 3D (3DS), Mario Kart 3DS (3DS)
Zelda - The Legend Of Zelda: Skyward Sword (Wii), The Legend Of Zelda: Ocarina Of Time 3D (3DS)
Pokémon - Pokémon: Black Version (DS), Pokémon: White Version (DS), Pokémon Ranger: Guardian Signs (DS), PokéPark Wii: Pikachu's Adventure (Wii)
Yoshi - Mario Sports Mix (Wii), Mario Kart 3DS (3DS)
Donkey Kong - Donkey Kong Country Returns (Wii), Mario Vs. Donkey Kong: Mini-Land Mayhem (DS), Mario Sports Mix (Wii), Mario Kart 3DS (3DS)
Metroid - Metroid: Other M (Wii)
Star Fox - Star Fox 64 3D (3DS)
Kirby - Kirby's Epic Yarn (Wii)
Wario - Mario Sports Mix (Wii), Mario Kart 3DS (3DS)
Kid Icarus - Kid Icarus: Uprising (3DS)
Fire Emblem - Fire Emblem: Hero Of Light And Shadow (DS)
I'm not holding my breath for any Mother games, but where's F-Zero? (Maybe one day there will be a port of F-Zero X or GX for the 3DS...or better yet, an actual new game...)
And besides those franchises featured in Super Smash Bros., there're also:
Wii Series - Wii Party (Wii)
Animal Crossing - Animal Crossing 3DS (3DS)
Professor Layton - Professor Layton And The Unwound Future (DS), Professor Layton And The Mask Of Miracle (3DS)
Nintendogs - Nintendogs + Cats (3DS)
Golden Sun - Golden Sun: Dark Dawn (DS)
PilotWings - PilotWings Resort (3DS)
That's a healthy amount. Even without the Mario/Yoshi/DK/Wario repeats and 3DS ports.
As for the 3DS, hopefully it comes out this year. I thought I heard it was supposed to come out this fiscal year (which ends in March), at least back when we first heard about it this past March. It would make sense to release it before Christmas instead of after. And they shouldn't wait 'til next year if they can help it while they're ahead of the competition. And not just because the whole world is salivating for it now.
And the Vitality Sensor? The mystery is still there...or maybe it flatlined...