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Do 3-D interfaces cause headaches? Potential trouble for immersive visuals as 3-D interfaces require unnatural eye movements which may result in visually induced motion sickness. More popcorn please.

I didn't end up with any ill effects, but I noticed that your inability to focus on objects on different levels of the 3D plane is unnerving. Often there would be interesting flora in the foreground, and because it's in 3D, you want to look at it but you can't focus your eyes on it.

Can 3-D devices help students learn?

"The hand-gesture recognition system uses a camera developed by Microsoft, called Kinect, which senses three-dimensional space. The camera, found in consumer electronics games that can track a person's hands, maps the surgeon's body in 3-D."

This blurb announces a grant from the Bill & Melinda Gates Foundation to develop software tools that detect student engagement while using educational software--and use the data to improve learning. "To study engagement, robust learning, and emotion in real classrooms, [Ryan S.J.d. Baker's] research combines quantitative field observations of student behavior while using educational software with data mining to detect patterns in the ways students tackle the tasks that [his educational] software presents."

Avatar is taking a step in the direction of 3D movie experiences