Meet the EmotiBit: a wearable biometric sensing device for your DIY projects. It can be used to capture emotional and movement data. It has an open source design and can stream data wirelessly to your favorite platform.
The data this device captures can be recorded to a SD card. EmotiBit can detect over 16 biometric signals. You can wear it in any orientation, anywhere on the body. Expected to ship in February. You can find out more about it here.