I know that the Specktrum telemetry works with the Airtronics M8. When they first came out, Specktrum made modules for M8/11, Futaba 3PK, and the KO, Computer FM radios. Telemetry was just an add on to the original module Specktrum system. I have a few of the telemetry modules. I ran it with my M8 and my M11.
I know that the Nomadio systems work with Specktrum 2.4 recievers, but that was using a downloaded softwear upgrade to the Nomadio. I think that every other system is strickly mated to it's own reciever for proprietary reasons. I have to say no to your no. 2 question, but I would call up Airtronics or Futaba customer service for a straight answer.
Herolin <---Traded my Airtronics for an Ipad and Laptop...
Soon to be GHETTOPRINCIPAL..