Imagine that you're out and about and want to print a photo. With iPrintApp ($1.99), you can stop by any local copy or print store with a Wi-Fi network and print the photo on the spot. What makes iPrintApp unique is the elimination of a client/server application on the network to interface between the iPhone and the printer. Nor is there any need for cables or USB or Bluetooth drivers. In other words, this is a simple, easy-to-use app. Photos in your iPhone or iPod Touch photo gallery are printed directly to any networked printer supporting PostScript or USB printers that use Mac SharedQueues, located within their current WiFi network. iPrintApp leverages Apple’s Bonjour technology to automatically detect any compatible printers within the WiFi network.