iOS 4.2.1 Mobile Safari adds goodies for developers

iOS 4.2.1 Mobile Safari adds goodies for developers
Web developer and blogger Maximiliano Firtman has provided a quick demonstration of the DeviceOrientation API--a "move the ball" demonstration, available here on iOS devices running iOS 4.2.1.Firtman says that WebSockets is another major update. "WebSockets is a W3C HTML5 API currently in draft that allows JavaScript to use an open, bidirectional full-duplex connection to a server using TCP sockets," he said. "This is a great news for chat and real-time applications that will reduce AJAX periodic calls."Developers will also be able to access the new AirPrint feature in iOS 4.2.1, allowing for wireless printing directly from Web pages through the new Safari print dialog.As a Web developer, what's your favorite feature update in Mobile Safari? Let me know in the comments!Be sure to follow MacFixIt on Twitter and contribute to the CNET Mac forums.