Touch is cool... and I didn't fancy paying the crazy prices for the iphone at the time of buying.
I use the remote on my touch more than anything, being able to control itunes from anywhere withing range of my wifi is too cool.
Good mp3 and video player too. If your not going to be sticking silly amounts of music on it then get a touch. I have over 200gb of music on my PC, but around 15gb in play list on my touch and around 40gb in itunes. So the touch is just right for me. Depends what your going to be using it for.
As for the new ipod range, looking @ the blog of
Kevin Rose, there redesigning the whole lot and also bringing out the new itunes, which is going to be much better, and will be more like last.fm (for people that use it) allowing profiles and friends withing the itunes store and being able to share playlist etc. Will be much better.
There not being out a new iphone as far as I'm aware, the reasoning for the new ipod range is to separate them from the iphone, theirs going to be a huge price drop in ipods too, just like the iphone 3g. this is to separate the ipod and the iphone, as currently people are choosing the iphone over a ipod as it seems to make better sense money wise, which makes sense.
So cheaper touch's and classics FTW.
Picture of the new Nano.