Thermal Pad HD Thermal Pad HD

the author of this app says:

Doodle your own wallpapers!
Thermal Pad simulates a heat-sensitive surface that reacts on finger tips. You can shake the device for faster cooling down of the pad. Choose between 7 different paint styles and share your pad by e-mailing or set it as wallpaper. Have fun drawing impressive wallpapers or just doodle with this app. New in this Version: Etch-A-Sketch colormap.

For all smartphones and tablets!