FLIR has a new version [3] launching Q2 for $200.
[1] http://www.flir.com/flirone/ios-android/
[2] http://www.thermal.com/products/compact/
[3] http://www.flir.com/flirone/products/?id=81752
These things are really cool, we use a standalone one in my office for thermal testing products. It's not just fingers on screens, you can see footprints from someone walking across the floor.