I have constant stuttering of sound as well. I use Panucci a lot and the audio stutters as the screen brightness changes first to dim then to off. Notification sounds from incoming messages interrupt the audio feed about 95% of the time. The rare occasions when I get a little "ding" from incoming email and the Panucci audio doesn't hiccup are almost jarring even though that's the way I would think it's supposed to be. Not only that, but there is sometimes such a lag between the stopping of the audio playback and the start of the notification sound that I often think I must be getting a phone call. That's probably my single biggest gripe with this otherwise awesome device... any interaction with the device will interrupt the audio stream.