With this software you can develop applications that run on iPhone and iPod touch. Includes the Xcode IDE, Instruments, iPhone simulator, frameworks and samples, compilers, Shark analysis tool, and more.

NOTE: In order to download this application, you need to log in with your Apple ID. The Apple iPhone SDK 3.1 Beta 3 is for development and testing only and should be installed on devices dedicated to iPhone OS 3.1 beta software development.

WARNING: Before installing and developing with this version of the iPhone SDK, you must first upgrade your Mac system to Mac OS X v10.5.7 or later.

What's New in This Release: [ read full changelog ]

· Instruments can now profile your application on a device via WiFi connection. Read the release notes for instructions on how to set this up for your devices.
· Organizer: the iPhone Development grouping now collects crash logs, install bundles, and provisioning profiles in a single location.
· iPhone OS 3.1 Simulator uses frameworks more closely matching the device.