Here's a flock of butterflies, brought to you in XNA, which can soar around their environment with the help of the Wii controller. By tilting and rolling the Wiimote, you can control the flight of the lead butterfly. The rest of the flock sticks together, chasing you wherever your accellerometer-fuelled flights of fancy take you. All the butterflies, including the one controlled by the Wiimote, avoid collisions with eachother, as well as with the features of the environment. [ Update: After showing