Apple has just released iOS 4, previously known as iPhone OS 4, a major update to the mobile OS running on it’s mobile devices. iOS 4 brings in a handful of significant changes—the most awaited of which is Apple’s implementation of “multitasking”— and a slew of tweaks and improvements to existing functionality.
If you’re wondering whether you’ll be getting the update, iOS 4 is available only for the following Apple devices: iPhone 4, iPhone 3GS, and iPhone 3G users (as well as second- and third-generation iPod touch users). No iPad. iPhone users will get the update for free while iPod touch users will need to shell out some cash for it.