Okay we've had the projector for all but one of the iseries, there isn't enough space for desk use like your talking about, but multiplay generally will let you set it up somewhere else out of the way on a white wall.

We had wii and xbox on it when we wanted to use it for communal console gaming, which was good fun. Also we used it inside the tent at i31 and i34, projecting onto the back of the inside of the tent.

Also we used the projector on top of our desk to project as a second screen onto the ceiling or a nearby wall for advertising, but it wouldnt be usable for gaming like that.

Hope some of this information is useful