Exactly...

I've got 20 or so of these stupid over priced AMB transponders, and It'd be retarded for me to make a switch.

I agree though... I doubt the tracks are gonna run out a buy this right away. It just wouldn't make good sense.

If AMB was stupid enough to make a new system that was NOT backwards compatible with the old transponders, or to release new transponders that don't work with old systems... They just shot themselves in the foot if you ask me.