In my opinion a better idea that I have mentioned before is to do what the Toshiba E800 was able to do. It was able to have it's screen be displayed on a projector that has WIFI support. I know the Dell Projectors have an option to add a WIFI card in them. All that is needed is for someone to write the program that would enable the display of the Nokia to be sent over wifi or bluetooth with the supported protocol that the Dell projectors support.

I am not a programmer so I'm not sure of the feasability of this, but with the work that penguinbait, tonymoro and numerous others have accomplished i would not be surprised if someone is able to get this accomplished.

I should probably post this a a feature request to Nokia's development team.