The fact that every student has at their disposal at least one method for recording images, audio and video at any given time is really quite astounding. Between cell phones, iPods with video, and the webcams on their computers, students are able to record experimental observations and results for later verification, and to share with each other. I use my own iPod nano (the previous generation, which my students now find quaint..) to make video recordings of demos and so on to post online for my students. And some of the students even have actual cameras. You know, that don’t have phones in them.
Just a few short years ago none of this would have been possible. We really do live in wondrous times!