We just received a Stratus to test and we've succesfully connected the iFly 720 to the device. Walter is not just making sure all the data is decoded properly. But at this point it looks as if there will be no compatibility issues with the iFly 720 and the Stratus.
As for the Clarity by Sagetech. Yes, we are talking with them to. We are on the list for them to send a prototype to for us to test with. We had a conversion with them yeasterday and both parties see no reason the devices won't talk to each other. They will also be sending us a SDK so we can do a simulated test hopefully within the week.
There are some very nice ADS-B devices coming into the market now at much more reasonable prices. Stay tuned.