Students have had notebooks en masse for 10-15 years now, and THOSE didn't really revolutionize the classroom.
This is what always bothers me about the tech in classroom push, I graduated college only two years ago and while it makes me feel like a Luddite to say it, I think the combination of a video projector connected to the professor's laptop, a whiteboard, and a student with pen and paper doesn't really have a whole lot of room for improvement outside of specialized cases. My sister in law is an elementary teacher, so I know kids are one of the cases where tech can be put to really good use, but this article is talking about college and so will I.
Software is about automation, and for the most part we've already solved most of the pain points that detract from the ability to have a productive lecture. I think thats why most of the real improvements have been made in online classes, and the online components of traditional classes. By making all course materials instantly accessible anywhere the only things that lectures have over online classes anymore is the immediacy of interaction with the professor, and the act of note-taking. What else actually matters in a lecture and what tech could actually help that in the lecture hall? Maybe something like google moderator for huge class sizes would be useful? I'd say that being able to recall anything that happened in the lectures would be great, but even when I had access to recordings of a multi-campus class I took over a teleconferencing service I never used them.
And the note taking device doesn't really make a whole lot of difference, software can't (yet) automate the act of putting information into your brain. I did some classes with pen and paper, I did some by typing on a laptop, and a classmate used a laptop-that-rotates-into-touchscreen-and-stylus job; it's all just a matter of preference really.