Hi !
I just discovered the project : great idea, great thinkering !
I'm going to try it at home 
... and it's going to be very usefull !
One question : I saw some discussion about stacking pictures. If I understood well instead of getting one image in 3 minutes, you can leave it for much longer and get more measurement points and in the end have a higher resolution picture.
Am I correct ?
Did anyone looked into this ?
EDIT: I finally managed to take some time and assemble the project. I did exactly as per www.cheap-thermocam.tk instructions (only I added a 100uF between the GND and the 3.3V). It worked great.