About a month ago, we told you about Immersion's MOTIV dev platform to design Android apps with tactile feedback, and today its release has finally arrived. The SDK comes with predesigned haptic effects, sample code, and the ability to tweak the duration and intensity of the feedback -- allowing developers to perfectly tailor the amount of shake in your groove thang. Interested parties can hit up the source link for the SDK download and start indulging in the haptic dark arts immediately.