Isn't it also possible that SiriusXM is partering with them in developing their "official" applications?
for me i would have jumped on the official app. that's not a problem. what dissapoints me is that sirixm had a c&d for the app for desktops. i do not like the official desktop app provided, mainly because of the "are you still listening?" every hour. i would much rather set the station, minimize the window and go about doing my stuff.