The past few seminars I've been to have been more interactive than last year.  Just this last week I went to one where the speaker had a projector displaying questions from the attendees.  What happened was that at the beginning of the seminar the speaker advised the group that they could text their questions to a cell phone number and the questions would be displayed on the screen.  I happened to be sitting very close to the laptop that was handling this process, and noticed the software's name was called FireText.

The speaker was able to answer many of the questions during the seminar without missing a beat.  Unfortunately, my question wasn't answered during the seminar. But, I did get an answer back via text from the speaker while I was getting into my car after the seminar.  This new interactive texting software called FireText really enhanced my experience!