big news: on the off chance, I reinstalled an audio player today after the upgrade to the latest firmware 1.7.5 yesterday - and I almost couldn't believe it, but BLUETOOTH AUDIO WORKS!
so go get one!
Long press on the next page button refreshes the screen (as on C67 with the home button), I find that very useful.
Short press on the power button obviously turns off the device (screen saver shows), audio continues however.
now completely happy sharkcow