So, Gimp was removed because it was too advanced, but MM has OO Drawing, a video editor, a remote desktop viewer, a terminal server client, and OO Spreadsheet. Then there are preferences and administration: Passwords & encryption keys, network proxy, and keyboard input methods. Blimey! What humans are using this? Not your average ones that Ubuntu is directed at, I'm sure.
Then there is the audio issue which stopped me using Ubuntu since Karmic: I have an LFE channel (subwoofer) on my laptop that I cannot control independently nor combined for the volume. Bugs were raised but the reply was to shift the blame to upstream changes. I have been using Debian since, and these changes are not in Squeeze.
Apart from regular releases, I see no advantages of Ubuntu over Debian. Even Debian Squeeze will have a live CD and a graphical installer.
Any chance of having a better ranges of apps in NN, and sort the audio out.