The challenge of visible twitter at conferences

Last week I gave a keynote at Web 2.0 expo NYC, and as you can see in the photo below, one of the interesting things this year was the twitter feed for the conference was placed on stage behind the keynote speakers.  Any tweet with #w2e was put up live, on stage, a few seconds later. The slides, if any, speakers used were placed on the large screens to the left and right of the stage.  I've seen twitter on stage, and presented with it up before, but never right smack dab behind me on stage.

I'...