Daniel: The sounds can be easily removed while keeping the themes, since they have their own package. Same goes for the replacement icons/startup graphics. First uninstall lcars-complete (a meta-package which depends on all other LCARS packages, but installs no files of its own), and then you can remove the sounds and/or extras packages while keeping the themes. Reboot after removing lcars-sounds, and Nokia's sounds will return. We made separate packages for the various parts so people can pick and choose which parts to keep.
p.s. I wouldn't have rated my own software, but this comment system requires a rating, and if I select nothing it rates 0/5 stars. Very nice, Nokia ;)

This is brilliant. Not 100% as usable as the default themes, but so much more fun to show to people... I've been giggling happily every time I look at my tablet, and everyone I've shown it to has been highly amused too. Fantastic job :)