Regarding Technology in Undergraduate Teaching

I had no opportunity to attend last class; therefore, I have no idea which were the specific points covered regarding the use of technology in undergraduate teaching. However, there is one question that comes to my mind when I think about the topic. Can the use of technology in teaching be excessive? The question arises because of previous experiences. I have had the luck to attend courses in which the teacher simply does not like using technology and, at the most, uses projections of his hand-written material. Opposite scenario has been when the teacher loves using technology and brings iPad, iPod, videos, animations, different format presentations, applications for iPhones, and more; on top of that, the teacher wants to take notes on the tablet which simply destroys hand-writting and it is impossible to read. How much technology is enough? When is it too much? Is there an inflection point on improving teaching and the amount, and quality, of the technology being used?