I think this thread has been pretty useful. I'm guessing a good amount of people assumed it was signal but there is just no way. Each game I try cuts out intermittantly. The most common error I get is "unable to connect" but it instantly conects again after another press or two. I am sitting in the same chair in the same location for hours with full 3G connectivity but it randomly stops a lot even though the app says "playing". i then press stop and start again to get it going.
If audio stops and it still says playing it could just be a commercial break. Commercials aren't played in this setting (much like Sat. radio) so you will hear nothing. After the commercial break the audio will come back. This is not a sign of it being broken. It is normal.