Looking at the technology of this device, it does not monitor touch, but instead the position of the pen. A "real" touchscreen does not require a special pen to register a touch, your finger is typically used. There are many types of touchscreens, some actually respond to the force of your touch (resistive technology), some sense the capacitance of your finger, others the acoustic damping caused by your touch, and a new technoloty even "listens" to the sound of your touch and calculates where you touched.
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Looking at the technology of this device, it does not monitor touch, but instead the position of the pen. A "real" touchscreen does not require a special pen to register a touch, your finger is typically used. There are many types of touchscreens, some actually respond to the force of your touch (resistive technology), some sense the capacitance of your finger, others the acoustic damping caused by your touch, and a new technoloty even "listens" to the sound of your touch and calculates where you touched.
German aircraft engines in world war 2 had direct fuel injection and also injected MW50 (50% methanol 50% water) for maximum power.