This is the official E3 Nintendo thread, which was allowed by Zex. Here is a link to the E3 2011: Nintendo Preview done by Daniel Share-Strom.
Lets cover the basics: The Date is June 7th, at 9:00AM/9:00 Pacific Daylight Time (PDT). Since majority of the site population are from Eastern Daylight Time (EDT) Timezone and British Summer Time (BST) Timezone here is the conversion: 12:00PM/12:00 (EDT) and 5:00PM/17:00(BST).
Timer to the event:
This is where to watch:
http://e3.nintendo.com/
http://www.Gametrailers.com/e3
http://e3.gamespot.com/press-conference/nintendo-e3/
Also follow our very own VGC staff on: http://e3.vgchartz.com/
Will add more sources later
Expected Titles:
Wii:
The Legend Of Zelda Skyward Sword - Main focus of the stage, and the gem of Nintendo this year, in terms of software.
Kirby - Final a kirby game that sucks! :P Yes, I wanted to abuse the sucking joke.
Potientially The Last Story and Xenoblade - Hopefully these two gems will make it over to North America. I am huge RPG fan, and these two will be a welcome addition. 
DS:
Small titles, maybe nothing
3DS:
Mario Kart 3DS - Mario Kart is always a blast, and I cannot wait, until I own my friends at it. (I know individuals here would own me)
Super Mario 3DS - Any game with Super Mario in it, typically does not disappoint.....cannot wait for more information on this matter.
Super Paper Mario 3D - Not sure if this is a port, or a new game... either way I will pick it up...and it should be at this years E3.
Starfox64 3D - The return of one of the greatest franchises in the 64.
Legend of Zelda: Ocarina of Time 3D - The remake of one of the greatest games ever.
Kid Icarus: Uprising - The game that was highlighted in last year's e3 will sure make an appereance at this year's e3. 
Cafe: Unannounced Titles
Nintendo has arrived (Thanks to Soriku):
News from the Conferences:
Wii U: Nintendo's Project Cafe Officially Named "Wii U", http://gamrfeed.vgchartz.com/story/86666/nintendos-project-cafe-officially-named-wii-u/
E3 2011: Wii U Games Announced http://gamrfeed.vgchartz.com/story/86667/e3-2011-wii-u-games-announced/
3DS: Mario Kart, Super Mario 3DS, Kid Icarus, Luigi Mansion.
DS: Free Four Swords for DSiWare
Special Thanks: gumby_trucker for providing the image that you see.
One of the problem's with Nintendo is that a lot of stuff is unknown from them. Maybe I should do a tidbit on Nintendo Rumours.
