I was able to transfer music to my psa[play. I think I did see the "bug" that held back this release. The failure was very minor, and failed as gracefully as one could hope for. It gave me an error message, and let me try the transfer over again. Upon retry, it worked fine. I tried to reproduce it, but was unable.
I'd gladly trade rebadged rio receiver support and the reboot problem during multi-cd mode for this extremely minor issue.
Plus, it might have been there all along, since I've really only hooked up the psa[play 3 other times.
my 2c