While the pricing model would be different, it might allow for a more personalized learning experience and a relationship between tutor and tutee. Either way, I love that you are making self motivated learning more accessible.
That way, students can pay less and tutors can earn more. If 10 students pay $10/hr, that's $100/hr for the tutor, and the students would still benefit immensely.
A group section would be terrific for another reason - in academic contexts, while students DO learn from their professors, they learn from ONE ANOTHER as much or more. There are a few reasons for this, but one of them is, I think, that they're more at ease with one another and don't have to worry about looking bad - this openness helps ideas flow more freely.
Group functionality would make that dynamic possible, further replicating the network that occurs in real life, in cyberspace.
You are already anticipating v2.0.
We will definitely consider group sections for a future iteration of the platform. As you said, this would be beneficial for all parties involved.
By the way, on uMOOC, tutors keep 80% of their hourly rate, from day one.
If you're wondering what our stack looks like, we're using (among other things) Python 3, Django, Django-Rest-Framework, Ember-CLI, Emblem, Sass (the original, indented version), Bootstrap, CoffeeScript, and EasyRTC.
If you have any questions or concerns, technical or otherwise, please don't hesitate to ask!