Can a legacy application for training be modified to use Gabriel?  This demo shows how a Drawing Assistant created by researchers at INRIA in France has been modified to use a wearable device (Google Glass).  In its original form, a user would receive instruction to improve his drawing skills on a desktop display, and provide input using a pen-based tablet.  This demo shows how the system has been modified to retain the application logic for instruction, but use any writable surface (e.g., paper, whiteboard, etc.) for input.  Computer vision on the video stream from Google Glass is used to generate input and display streams that are indistinguishable from the original.