Unless the gloves have an etip, then i wouldn't expect them to work with the units in the MK7.
The touch screen units are quite different to those used in the older RNS-510. The RNS units used a resistive type of touchscreen, whereas the units in the MK7 use capacitive type.
The resistive touchscreen itself is made up of several layers, the topmost of which flexes under your finger or stylus, and is pushed back onto a layer behind it. This effectively completes a circuit, telling the unit which part of the screen is being pressed. This then is irrespective of whether the user is weather gloves or not, it just relies on pressure.
The capacitive units in the MK7 touchscreens don’t rely on pressure, but rather they use electrodes to sense the conductive properties of objects, such as your finger. So, they don’t rely on having an object pressing particularly hard on their surface, but will only react to certain objects. Prod one with a standard stylus or gloved finger and you’ll get nowhere. Using a capacitive type (like mobile phones), allows the gestures such as pinching the screen to zoom in on the nav screen or dragging the time line on a music track form instance.
