The display looks to be locked at 50fps whatever HDMI settings I use.

It was changed to a defined QUIT key. On the XBOX 360 controller it defaults to the XBOX button.

From the readme.txt:
* Frontend quit is now a defined QUIT key, START+SELECT no longer work.

Dom, sounds good here. Old kernel on OpenElec has the audio DTS dropout on my samples but with the new kernel there's no drop out!

Thanks Dom!

Anyone know how to update the kernel (i.e. rpi-update) on OpenElec to test this out?