Hey guys I think I can help here if anyone feels like using their phone as a guinea pig. Most digital cams use a ir lens to help filter excessive ir out. I played around with the idea when I first heard about the sony handy cam nightvision x-ray thing and got some decent results. Not so much with the x-ray vision thing but with basic nightvision it did help. Here is something I b'googled that I think will help.
http://tech.blorge.com/Structure:%20...vision-camera/
By the way, awesome writeup Acslam! So the basic principle should apply, the cmos cam inside the phone should also sport an ir filter, but I've never opened up a cam from a phone myself. I might try it out with one of my old phones, i got a diamond laying around that I was thinking of turning into a spy cam anyway.....don't judge!