I found a 2.5kg full HD projector (this is very new) http://www.viewsonic.com/us/pjd7820hd.html here. This screen http://www.amazon.com/Tabletop-Porta...dp/B007A5757O/ fits into a carryon. Often when I travel I could use a larger screen at the other end. This seems like a great trick to pack an impossibly large display into a very small space (and ~4kg is not bad at all). Any problems with this? Will the TSA think it's a rifle in my bag or some idiocy like that ?