Sort of limping along half dead. 144.390 MHz is pretty busy with APRS and the numerous repeaters around me sometimes might have a few people on. I would guess overall use around here is about 10% of what it once was at best. I cannot imagine how this would work though. 2 meter radios are so common all over the world the potential for interference would be HUGE. The existing aircraft band is blessed in that no one is making $20 118-138 MHz AM HTs and selling them on Amazon. I cannot ever recall QRM while flying that was from a non-aircraft source. Worst thing is usually a stuck mike.