As has already been reported in several other fora, Blackboard and iParadigms (the maker of Turnitin) have settled their patent dispute out of court and are working together again as partners. I’m not sure that we’ll ever really know what happened between the two companies, but any amicable settlement that leads to the non-assertion of an edupatent is good news for universities.
Disclaimer
The views expressed here are solely my own and do not necessarily reflect those of my employer.