I'd like to see SASS based starterkit based off of the HTML5 starterkit added in. I've written a patch against 7.x-3.x-dev that should add everything needed, so all that would need to happen to get this in would be to have someone QA it and commit it. Additionally, because I know that John likes LESS over SASS, I'd be happy to maintain this subtheme and help with the Omega theme in general, because I love it.
Patch is attached, should be done correctly off of the git diff instructions from within the top level of Omega. Because of how Omega Tools is written, it should work with Omega Tools' drush command fine if you use the following command:
drush omega-subtheme "My Theme" --starterkit=starterkit_omega_scss.