I like the old one better so far due to the colour scheme and it being smaller. I know it's only mm's, but it makes a difference in my pocket since I wear tight clothes usually. 3G and GPS are nice, but not that important since all the other features will come to me anyhow via 2.0 update. I'll wait for the next release with 32 GB.
Actually, since it's tapered, it'll propably fit better in our pants than the old one.
But that's not a good excuse to get one. You can get smaller, better and more feature-rich phones all over the place.