So, I got an idea I want to share with you...
The PalmPukA sliding palm rest that lets you move your hands without lifting them.
It is basically a combination of resting and hovering...
The device consists of two main parts:

Upper Part (with cushion pad) -> Where your palms or the base of your hands rest.
Lower Part -> Contains three captive steel balls arranged in a triangle.
The upper part glides smoothly on these balls in two axes...

This should create a low-friction "hover" effect...
Your hands stay supported, while the whole assembly slides with your natural hand movements.
It should feel like your hands are floating...
Combining the benefits of a palm-rest with the freedom of hovering.
This probably only works for 60% size boards... and split-ergo ones...
The perfect size of the Puk, the freedom of movement, and the exact design... have to be worked out.
If someone wants to produce the PalmPuk, feel free to do so (credit and free sample would be nice tho).
What do you think? Input? Criticism? Suggestions?