The upgrade went off without a hitch! I'm now a proud user of Ubuntu 7.10.
In terms of features, it is more of the same of what you love about Ubuntu. The system runs as it should, and I'm happy with it. I really haven't noticed much new, other than the Display control panel that now has support for multiple monitors. It didn't do what I wanted really (screwed up the resolutions), so I went back to the files I had from when I manually edited my configuration files to work perfectly. Its a shame that this was supposed to be one of the biggest features, but doesn't seem to quite work. The whole system seems a little more snappy and responsive though which is nice, but it could just be my imagination.