1) If you Edit a domain, you get a form with Site ID, Domain, and Primary.
Updating Domain or Primary works fine, but changing the SiteID does nothing. This is NOT introduced with 3.3 and the add_site_option change, as it functions this way on 3.2.1 as well.
2) Would it be possible/desired to display Site Titles or non-mapped URLs in the table of Mapped domains? Site IDs are pretty meaningless, but being able to quickly see which blog is mapped would be helpful.
3) Other than 1) above, Dev version is working great on 3.3.1 - thanks!!