I just bought the 609 and set it up on Friday. I was using the UWF-1 Wireless LAN Adapter to stream music from SiriusXM, Pandora, and vTuner. Things seemed to be working fine. I downloaded the iPhone apps (Onkyo Remote and Remote2).
The documentation that came with the UWF-1 and a review of the Remote2 app said to do a firmware update, which I did. Before the firmware update, there was a Favorites selection in SiriusXM. The selection is no longer there. I can select save to favorites while listening, but nothing happens. In vTuner there is a Favorites selection, but no selections are found when I open Favorites. These functions were working fine before the firmware update. There doesn't seem to be any way to revert to the previous firmware.