I'd like to second Sebastian's comment. Our tutors are really starting to see the value of online assignment submission in 1.9x - but are hamstrung by requirements for anonymous (and multiple) marking of summative work. Turnitin was proposed as a solution, but our Registry Dept wouldn't agree as it didn't map perfectly to in-house processes, so we're unable to progress that as an option. I'm desperately hoping it will be available for 2.x by the time we jump in June 2012.
On the tracker it's unclear what the timeline and version are for functionality being available to enable anonymous submission for marking - can anyone clarify?
Recommend anyone who wants this functionality vote for it so the importance is clearly recognised http://tracker.moodle.org/browse/MDL-11968.