Drizzle source tarball based on build 1317 has been released. There was a lot of clean up and removal of dead code from Stewart as he continues to work on integrating embedded InnoDB. Brian added a data_dictionary schema and also did a complete rewrite of the SHOW commands.
The Drizzle download file and change log can be found here.

[...] This information is based on the current build 1317. [...]