As of March 2012, Scratch has also been relicensed under the GNU GPL v2 (excluding the Scratch trademark and logo) [1], so it is indeed DFSG compliant.
Regards, Vincent [1] http://info.scratch.mit.edu/Source_Code -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org