Following the update the app is working again. The user interface has improved slightly, with less clicks to get to the programmes and programmes do load quicker (sorry it really does "seem faster"). After two days of use I have not seen the battery drain issues. Unfortunately the stuttering playback issues persist (even on fast wifi), it seems worse on catch up programmes than live, and whilst the stuttering happens less frequently than before, when it does happen it is worse, making programmes unlistenable (usually at exactly half way through the programme??). There is still no way to add or sync favourites or access recently played (to resume listening to a programme for example). It is virtually impossible to multi task during playback, and any attempt to open other apps, emails or texts brings it grinding to a halt, however this is maybe a 512MB RAM issue? I would rather have a slower user interface with reliable playback than the other way around as the update has achieved. For me this may be a deal breaker for Windows Phone as iPlayer radio is my most used phone app, I appreciate third party apps are available but all have compromises. I will keep trying.....