I'm glad I have my 5th gen Nano. The size and form are perfect for me when walking or cycling, and the clickwheel is definitely the control of choice for in-pocket manipulation (cue smutty remarks).
I'm not an anti-touch Luddite, as I have a 2G iPod Touch and an iPad, but I don't want to have to fiddle with an impractically small screen everytime I want to change songs. IMHO the new Nano screen is just too small to be used effectively as a touchscreen, and the interface is a poor compromise. The loss of video playback is another unwelcome step backward.
I like the video camera and its filters on the 5G. Sure it’s only low-res, but it’s for fun, and fine for basic YouTube clips. As they say, the best camera is the one you have with you.
Grumbles aside, I’m sure the new model will sell well, as there is bound to be an audience for it. I think Apple missed an opportunity by not including a full-screen clock, as I would imagine a lot of young people would wear it on their wrist.
...and that’s my 2 (euro)cents
I like the full screen clock idea. Maybe Apple can include that as a software update. I'm sure accessories companies can produce wristbands to accomodate the nano to wear as a watch.