Beta 3 of iPhone OS 4 for developers is now out!, along with an updated version of SDK for iPhone and iPod touch. Only members enrolled in the iPhone Developer Standard or Enterprise Program can access these bits of iPhone OS 4 and SDK by signing into Apple Developer Connection. Please Register or Log in to view images iPhone OS 4 Beta 3 and SDK includes new API improvements, features and bug fixes. Source: http://www.redmondpie.com/download-iphone-4.0-beta-3-9140729/ Changelog: brings back the ability to take OS-wide screenshots using the built-in image capture method. the ability to sync your photos with iPhoto has returned ‘Multitasking Dock’ in beta 3 now has a different look. Please Register or Log in to view images The multitasking dock now has iPod controls and a rotation lock button. Please Register or Log in to view images Rotation lock button in status bar. Physical lock rotation button coming on iPhone 4?