Get an iPhone 5 to sync with a Mac running Mac OS X 10.5.8, this was never possible back in the day because Apple restricted the iPhone 5 to syncing only with Mac OS X 10.6.8 or higher.
iOS Developers out there, have you ever been interested in stepping back from the new hotness for a moment to revisit your roots and try developing apps for the original iPhone? This article will walk you through the whole process. A lot of things have changed since 2008, but it's still possible in 2025.
Apple always officially required an Intel Mac to do iPhone app development, but I figured out how to get the iPhone OS 3.1.3 SDK installed for developing Original iPhone and iPhone 3G apps on your PowerPC Mac.