As expected and widely reported ahead of today's keynote, Apple introduced a completely revamped iOS at WWDC. Not only did they ditch the skeuomorphic design scheme in favor of something a little more colorful and fun, the company added a handful of neat new features—some old, some new. But as with any major update to the mobile OS, there are a handful of features that won't be coming to older generation iOS devices. (Hint: It's because Apple wants you to upgrade.)
For starters, iOS 7 will be compatible with the following devices, so anything baked into the OS, like Find My iPhone, will be included:
Now, according to Apple "features are subject to change" and "not all features are available on all devices." Here's what you're getting and not getting based on each device. (And in some instances some services will be limited to 10 devices.)
AirDrop (which requires an iCloud account): iPhone 5, iPad(4th generation), iPad mini, iPod touch (5th generation)
Siri: iPhone 4S, iPhone 5, iPad (Retina and newer), iPad mini, iPod touch (5th generation)
Panorama: iPhone 4S, iPhone 5, iPod touch (fifth generation)
Square and video formats and swipe to capture: iPhone 4 and newer, iPad 3rd generation and newer, iPad mini, iPod touch (fifth generation)
Filters in Camera: iPhone 5, iPod touch (fifth generation)
Filters in Photos: iPhone 4 and up, iPad (3rd generation and newer)
iTunes Radio: See supported iOS 7 device list above