NeuroSky MindWave Mobile Headset
NeuroSky's MindWave Mobile Headset uses sensors that measure the electrical activity in your brain for use with iOS and Android apps. No, it's not telekinesis--it measures how relaxed, concentrated, or attentive you are. Tug of Mind is a to-be-released app that looks like it will be great for stressed-out businesspeople: It will let you upload a photo of someone you know who is causing you stress, and then defeat your opponent by keeping your mind calm. NeuroSky's MindWave Mobile will be available March 11 for $100.