Keyboard plus antenna

I noticed that RDM880’s antenna nearly fits around a standard 4x3 matrix keyboard…
So I thought: why not combine 'em on a single cs (maybe together w/ a couple of LEDs (red and green, or just one bi-color) so it can act as a “complete” input system?

That is so cool~
We will think about it,and try to develop that.
Thank You!