BigMsg lets you and your friends connect multiple phones to create a banner message that can be seen across a room, in a store front or at a party. It is hard to make a big impression with just one device, but if you put several iPhones or iPads together you can create an impressive display (especially if you use iPads). The result is similar to the flash card sections uses to spell big messages at college football games.
BigMsg uses WIFI or Bluetooth to connect iPhones and iPads. Use one device to create the message team. Each iPhone or iPad then joins the team and selects to a row / column to indicate position.
You can set message text, color, animation type and orientation. Messages are more impressive when you have more devices since there are fewer characters per device.
Try it out and see how impressive it is to watch your text flash across several iPhones or iPads.