Changes

Only Intel based Mac OS X systems can be used to develop applications for the iOS. If you have an older, PowerPC based Mac then you will need to purchase a new system before you can begin your iPhone app development project. If you are unsure of the processor type inside your Mac, you can find this information by opening the Finder and selecting the About This Mac option from the Apple menu. In the resulting dialog check the Processor line. The following figure illustrates the results obtained on an Intel based system:

[[Image:ios_4_xcode_4_about_mac.jpg|Identifying the CPU in a Mac system]]