Nintendo Infinity?
Source: Nintendo-Revolution blog

http://i19.photobucket.com/albums/b196/ssj4android/smallscan.jpg

This picture was first found on a GAMEFAQs thread. Showing a scan of an A4 sheet of paper, entitled ´E3 2005 presentation´. Below the logo, there are the following keypoints:
* ElectroPlankton/Nintendogs
* DS Wireless Gaming
* Game Boy Micro
* Revolution Revealed
* Mario´s Magic Mirror

The best is the story about how this guy apparently got hold of this paper:

"I found this paper while cleaning one of NoA offices (I work for a janitorial services company in Redmond WA) I thought it was a simple discarded E3 presentation sheet. (Me being the huge N fan I am I kept it, but didn't think anything else of it.)"

He posted the scan after reading this thread:

"I Work for Nintendo of America and have some information you all my find very interesting concerning the "Revolution" and E3. What was presented to the public during Nintendo’s press conference was not what was originally intended to be shown. What you all saw was a rush job slapped together because of a panic due to a security breach. One week before the press conference the company had reason to believe that someone had stolen a copy of the "Revolution" presentation. (If it was by hacking r physically taken it I do not know.) Do to the risk that the video may have fallen into the hands of competitors Nintendo scraped all of their original plans for the conference. (And are reworking some of the aspects of the "Revolution" console and controllers just to be safe...thus the reason they are not done yet.) Originally, the presentation lineup included: the final version of the next gen console...complete with controllers, information and stats concerning the "Revolution" and a video clip of a new next generation Mario game. The next gen console’s actual name is Nintendo Infinity. (Assuming they don’t change that too.) You can in fact see part of the Infinity presentation in the notorious "Nintendo On" video clip. Both the scenes of the Mario 64 castles and of the next gen Mario game are from the original presentation. When questioned the maker of the "On" video he claimed to that he found the presentation on a P2P file sharing network, and he himself thought it to be fake, but decided to use part of it for his own project. The "Infinite Castles" scene as it was called was intended to represent the Nintendo Infinite’s ability to play virtually every Nintendo game ever made in addition to all the new games that would be releced. The Mario scenes (and screen shots found on some websites) are from a game called "Mario’s Magic Mirror". The game tells the story of how one day, Mario, Luigi, and Peach were walking in the castle. They turned a corner and suddenly found themselfs in an unfamiliar corridor. Upon inspection they found a mysterious magical mirror which Luigi is sucked into. Peach and Mario must rescue him by searching through the Mirror World with "Mirror Mario" and "Mirror Peach" to help and guide them. Mario has all his classic moves with the addition of the old ability to throw fireballs. Peach has similar moves as Mario but instead of throwing fireballs she has a makeup compact that she can use to shine light on enemies in the Mirror Wold. (The effect is much like if antimatter would come in contact with matter.) Also the four characters can even team up to do battle combos! In the game you can switch between the two worlds to change the mirror’s position in Mario’s world. This unlocks new areas and causes different effects...it can even change the size of Mario and Peaches’ mirror counterparts! If you re-watch the press conference you will noticed that the presentation seems very awkward and thrown together. As I said, to protect their new investment the company had to scrap everything. This is also why Nintendo had to label their new system with the hideous last minute "Revolution" logo, and naturally why the final console and controller were not displayed. I hope this helpd shed some light on some things.
Mr. H"