Yes, it seems that NEW youtube app is affected by issues worldwide, showing service unavailable and other notifications. It was okay since yesterday until todays morning. + I'm also having problems with myTube on my L820, can't use "audio-only" option + audio preloading during playback.... What is more: video stopped twice in the middle of playback and couldn't load again, also almost ? of videos seems to be unplayable. Don't know whats going on... It's not a problem with my wi-fi. They might have changed something in their API... (?)