Love the Zunepad! It took very little time to get the hang of it...though I didn't actually get the hang of stopping the continuous vertical scroll until just tonight (about two weeks after purchase). Turns out you can simply rest your thumb on the pad during a scroll and the scroll stops. I kept pressing the pad to stop it, which not only stopped the scrolling but instantly caused a selection to be made (whatever you ended up stopping on), then I switched to tapping the pad to get the scroll to stop, which didn't always work.
Feedback:
1) Agree with other posters about sketchy left-right navigation. Most of the time it works, but I do find myself having to repeat my left-right swipes much more frequently than the up-down swipes.
2) I would like to see horizontal scrolling through long lists work the same way that vertical scrolling works (esp. scrolling horizontally through albums). I am not a fan of the one-at-a-time horizontal scrolling.
3) Also agree with adding a tap or double-tap as a way of making a selection.
4) Where can I provide feedback on the Back and Play/Pause buttons? Is there a thread on those? Mine occasionally stick beneath the housing and stay depressed when I press them. The problem is worse with the Back button. I don't feel like I'm using a lot of force when I press the buttons.