That only proves you don't know any, not that there weren't any.

Most of the Golden Age systems launched with a port of an arcade game.

The NES launched with a port of Donkey Kong (both in the US and Japan), and some of the other games were arcade ports.

Sega Master System launched with a port of Hang-On (not sure about the other games).

Genesis launched with ports of Altered Beast and Gouls & Ghosts.

Now the SNES didn't immediately launch with older games, but the first few months saw ports of R-Type II (as Super R-Type), Final Fight, Graduis III, and others.

Sega Saturn with a port of Virtua Fighter.

PS1 with a port of Ridge Racer (not sure about the other games).

Dreamcast with a least a port of House of the Dead 2.

PS2 with at least ports of Dead or Alive 2, Street Fighter EX3, and Tekken Tag Tournament could count as an enhanced remake of Takken 3.

Gamecube with at least ports of Crazy Taxi and Super Monkey Ball.

Xbox with an enhanced port of Tony Hawk 2.

Xbox 360 might, but I'm not sure about the games. Xbox Live Arcade on the system launched with Joust, Gauntlet, and Bejeweled 2.

PS3 and Wii seemed to lack these as well (unless you count the PSN and Virtual Console launches), but the arcades were fading by then anyway.

But the 3DS is a handheld, and if you follow handhelds, this still applies to them.

Just see the information here. Edit: Ninja'd by rubang above.

That list is 70% new games!

New Pilotwings (first in 15 years)
New Kid Icarus (first in 20 years)
New Paper Mario (first regular Paper Mario in 7 years)
New Animal Crossing
New Mario Kart
New Resident Evil
New Professor Layton

The 3 remakes are also pretty popular, and make more sense than stuff like God of War Collection, which was an HD facelift 4 years after God of War 1 and 2 years after God of War 2.

When the 3DS comes out, Metal Gear Solid 3 will be 7 years old, Ocarina of Time will be 13 years old, and Star Fox 64 will be 14 years old.

I mean, yeah, it's 90% sequels, and 9% remakes, but I think it's the best and most diverse launch lineup I've ever seen.  And the original games will follow all the big franchises.  I mean, Nintendogs sold 23 million and hasn't had a sequel for 6 years.  And come on... Layton vs. Wright.  That's like a double sequel.  This launch lineup is ridiculous.

How many system launches aren't full of those? Seriously, your statement is redundant, and makes you look like you're fishing for something to complain about.

And the OP really needs to be fixed. Mario Kart is #1, not GTA V (which hasn't been announced at all). The most GTA announced for the 3DS is Saints Row, not that it's a bad thing, as SR2 is one of my favorite games.

yeah, rubang made a better argument, I'm not really talking ports, I'm talking remakes of older games, not contemporary arcade games or games for other systems at the time, that just means the game is going muliplatform. 

Poor list including so many copy and paste series as well as re-releases, tweaked or not.

Why is Mario Kart missing?

This list fails.

It's a handheld thing.

Game Boy Color launched with Tetris DX.

Game Boy Advance launched with Earthworm Jim (7 year old console game), Pitfall: The Mayan Adventure (7 year old console game), and Super Mario Advance (13 year old console game).

N-Gage launched with Pandemonium (7 year old console game).

DS launched with Super Mario 64 DS (8 year old console game).

And there are probably some more I didn't notice here: http://en.wikipedia.org/wiki/List_of_video_game_console_launch_games