A couple of companies have announced smaller form factor Thermal Cameras. I've always wanted one of these, but the price is typically too high (no mention in the article). What can you use a thermal camera for? First off you can "look" at your house during a cold night and find where your insulation is bad. Looking from the outside you'll see hot spots, while inside the house you can spot cold areas and drafts. Another use is in electronics. After driving my electric car a thermal camera inspection would pick up bad interconnects, where resistance is higher and thus more heat generated.