Also I'm kind of curious - when the iPod freezes or needs to be reset, exactly how do you do it considering it only has the sleep/wake button? Unless Apple has somehow hooked up the volume controls to be clicked/held along with it, I don't see how it's possible.
Uh, I don't think the previous nano's were any better for this honestly. None of them actually had a power off button. Shoot, my 3rd gen you couldn't even tell to go to sleep, you just had to let it sleep itself.
Oh, and I just looked up on the online manual. To reset the 6th gen:
First, make sure iPod nano is charged. Then press the Sleep/Wake button and the Volume Down button for 6 seconds, until the Apple logo appears.
And so far, after having one, I don't find any of your other problems to be true *shrug*. I love the interface. For browsing through severla songs, they have the alphabet quick find bar to go to the area the song would be (you don't have to mash your whole finger on the screen, just make sure a little bit touches. So I find my finger doesn't block at all cause I'm lightly touching the screen). And it has inertia scrolling so you flick, let it roll down til it gets near, and then you fine tune. Or if you are really snazzy, flick, hit screen when your song shows up to stop the scrolling, voila! Pretty easy for me (a helluva lot easier than the clickwheel for me honestly) but I've had an iphone for more than 2 years so maybe it's just that I am used to that interface.