mu-repo 1.1.1 now provides a workflow which allows cloning multiple repositories.

See: http://fabioz.github.io/mu-repo/cloning/ for more details

Also, now that there's actually a homepage, I believe even long time users may benefit from taking a look at the Tips & Tricks page: http://fabioz.github.io/mu-repo/tips_and_tricks/

Enjoy!

Fabio