Dude,
I have a blue 16 GB original myself and I love the idea of the zunepad. It was hard to get used to at first because I was always looking for the center button like my 30GB has.
I just want you to know I am a bit sketchy on the zunepad since my zunepad failed recently and I had to send it in to be repaired or replaced or whatever you guys do with them. I am just happy to have it back now.
I normally use it one handed with the tip of my thumb (no nail). Sometimes it is sluggish when it has been playing things for a while or immediately coming off the computer after a sync (I tell windows to safely remove the zune). Mostly it is pretty accurate when I slide it up or down. The clicking is hard to get used to since sometimes it will click down and select video when i am trying to select music on the main menu. I think thats mainly due to me not knowing where the center of the pad is all the time. Keep up the good work in the develpement of this awesome line of superior music/video players.
Overall it works good, so feel free to send me a test model if you want to have some more feedback on future products! :)
Henry