Another marketing gimmick?

A quick check of electronic device history indicates the GAN transistor is far from a "new" breakthrough.

https://en.m.wikipedia.org/wiki/Gallium_nitride

I took electronics 101 classes in the early 80's. Don't remember if Gallium was ever mentioned as an alternative material to silicon,for a semiconductor. 

What I clearly remember, is the Apple II computer was about to change EVERYTHING. That's at least, what the computer nerds kept telling me.

One instructor who was into audio, believed digital was going to blow everyone's mind, in the not too distant future. He thought vacuum tubes were stone age devices, and wrote them off.

A friend of mine was the youngest engineer at JPL at the time and he worked with Gallium nitride back then. That was in the late '70s. I don't know what the application was but he told me it was difficult and dangerous to work with.

All the best,
Nonoise

... with back lighted, orange Led's or that tube glow.