Readdle has released Printer Pro for the iPad, a new application allowing users to print documents wirelessly to a Wi-Fi or Mac/PC connected printer. Printer Pro integrates with the “Open In” feature on the iPad to allow users to open documents from other applications such as Mail or Safari in the Printer Pro application and then print them from there. Web pages can also be printed simply by adding a prefix to the Safari URL to redirect the web page to the Printer Pro application. A variety of Wi-Fi based printers are supported and users can also print wirelessly to a printer connected to a Mac or PC running the companion Printer Pro Desktop application. Printing support is expected to be included by Apple as a built-in feature dubbed AirPrint in the iOS 4.2 update scheduled for release in November. Although AirPrint has the potential to eliminate the need for third-party printing applications, other applications may still be able to provide a wider range of support and compatibility for Wi-Fi connected printers. Printer Pro is available from the App Store for $7.