i dont think N800 hardware picks up any satelite radio, and the app is fetching an internet stream of some sort via WiFi. which brings me to the question WHY? i dont have Sirius or XM but i figure you have a receiver of some sort when you subscribe to their services that is much better than N800 can provide... dont they practically give you the Hardware for Free just so you would sign up? and if it's a service that you sign up to just listen on-line than how is different from other internet stream radios?