Unit9 recently created Wi-Fireworks, an experiment that brought mobile fun into the real world. The prodco beamed free wi-fi from its windows, giving access to mobile phones of passersby. The strong signal directed them to an html5 page optimized for touchscreen devices running a special game. Anything the mobile users would then draw on their phone screens would appear on the company's windows. Clicking on the drawing would cause it to explode fireworks style.