Comment 2 for bug 1267498

In addition to what Aaron wrote: More recent versions of Moodle (at least 2.5) have the possibility to use the standard assignment module and have a group submission. That way only one member of the group needs to upload the assignment and it can be graded for all.

A quick Google search revealed https://cis.technikum-wien.at/moodle/ and thus you could set up a Mahoodle instance so that your Mahara pages can get graded in Moodle. Currently, this only works with portfolio pages of individual users but not group pages.