Apple has released new tools for developers creating applications for the iPhone and iPod touch, iPhone SDK 2.2. The release follows last week’s introduction of the new 2.2 software for users running the devices.
The 1.6GB download is optimized for devices with firmware 2.2 installed and requires the host Mac be running Mac OS X 10.5.5 (the latest version of the OS). The SDK is made available free to registered developers.
Developers can also join Apple’s iPhone Developer Program for $100 a year. This scheme provides a complete and integrated process for developing, debugging, and distributing free, commercial, or in-house applications for iPhone and iPod touch.
The iPhone SDK also includes the iPhone Simulator, which allows developers to test their applications in real time, as they write them.