Xcode is Apple's powerful integrated development environment for creating great apps for Mac, iPhone, and iPad. Xcode includes the Instruments analysis tool, iOS Simulator, and the latest Mac OS X and iOS SDKs.

Apple has released iOS 4.3, the latest version of its operating system for mobile devices. This is available for iPhone (4 and 3GS), iPod Touch (3rd and 4th generation) as well as iPad and iPad 2 devices. The update is available through iTunes 10.2 for both Windows and Mac systems. Note that whilst the iPhone 3G was supported for the iOS 4.2 update, it is no longer supported in the iOS 4.3 update. Since iOS 4.3 contains security updates, this may leave iPhone 3G users vulnerable.

Apple has released iOS 4.3, the latest version of its operating system for mobile devices. This is available for iPhone (4 and 3GS), iPod Touch (3rd and 4th generation) as well as iPad and iPad 2 devices. The update is available through iTunes 10.2 for both Windows and Mac systems. Note that whilst the iPhone 3G was supported for the iOS 4.2 update, it is no longer supported in the iOS 4.3 update. Since iOS 4.3 contains security updates, this may leave iPhone 3G users vulnerable.