[yitchelle]

I can see this as part of one of those electronic kits (http://www.kosmos-shop.de/Elektronik/easy-elektro-start/kosm...) that I got as a kid. Instead of having physical metal rods to connect all the circuit elements, they would supply a couple of these pens and a stack of papers.

It might reduce the obstacles for getting more kids into science and engineering.

For the real stuff, I am not so sure...

[DonGateley]

Yeah, I've been wanting to make a high order yagi antenna for FM for a long time but have been daunted by the construction. All I need with this is a piece of cardboard, a ruler and a nub to compress the traces when dry for better conduction. :-)

They did some experiments with HF antennas like for WiFi or cellular and it didn't work so well but I think there is a HF limit with it that FM should fall far below.