iScribble, is a graphical user interface developed by us, with a JAVA front-end and a Matlab back-end. The GUI is a powerful yet simple tool which can be easily integrated with Matlab. The interface provided can be configured to build your own application-specific GUI.
We have successfully used this for a number of applications and on a wide range of devices from imacs to tablet PCs. The interface relies on tracking the motion of the mouse and thus can work even with touchscreen systems (tested on a touchsmart desktop and a tablet PC)