One bug on the 6680 that used to annoy me immensely is stored folders on the MMC not being respected. e.g. I have an images folder, open this and inside are MMS pics, GIFS, personal, etc. On the 6680 when you opened the main images folder all the files were listed, meaning to find a pic I had to search through a long list of 1,000's of images. It's much easier if I can just go to the folder where I know the image is and select it from there.
My Q is, does the N70 have the same problem? Does it respect folder structures on the MMS properly or not?
The Gallery app on the N70 behaves in the same way, pretty much, as the 6680. You can group pictures by using Albums in the gallery. I suppose this is because most users do not understand/grasp the concept of subfolders/subdirectories of files.
Alternately, you could find some other app to use instead of the built-in gallery.