I keep asking for more flexibility in question types. I wish I had the money to finance it, but I'm an adjunct with a family to support. However, I am going to make an argument for it that is incontrovertible.
Most other LCMS have QTI 2.0. Not onlly Blackboard but Claroline and its forks offer QTI 2.0. I have seen the Chamilo fork on installatron at godaddy and was tempted to try it until I saw what the learning curve was like.
The Exam View software that many of the texbook companies issue uses QTI 2.0. One can simply open up an Exam View question bank and export it to an ims file, then import it to an LCMS offering QTI 2.0.. Who needs atutor, then, if it doesn't offer QTI 2.0?
The strength of Atutor is the simple, easily operable interface that is suited to what most teachers need, a document server with quiz functionality. Its main weakness is non industry standard QTI 1.2.1.
There is a new edition of the textbook I use. Currently, I have to rewrite all my tests for it. I have to do it manually because of QTI 1.2.1, It has been a week of 12 hour days just to do one of them, and I haven't finished yet. I still have two more textbooks to do. If I could import the Exam View quiz files, I could have it done in no time.
Especially if you offered QTI 2.0 with gradebook functionality similar to that of engrade.com, you would have an absolute knockout product for atutorspaces. Now that you are going commercial, it is time go industry standard.
Atutorspaces will have limited traction as a business until it offers industry standard QTI 2.0.