i-Beamer.com has released a laser pointer device for iPhone. Simply plug in i-Beamer into the device"s audio jack, and use the free i-Beamer app (available at App) to control the laser pointer. No battery or charger is needed. i-Beamer"s bright red dot is perfect for grabbing your audience"s attention during your PowerPoint presentation. Or use it to toy with your pet. i-Beamer works with all iOS device (including iPhone, iPad, and iPod Touch).
Source: http://www.i-beamer.com