Apple unveiled a new iPhone Tuesday where the most significant changes — including new voice control features — are all on the smartphone’s inside. The iPhone 4S highlighted a press event where Apple also announced release dates for iOS 5 and its iCloud online storage and sync service as well as a new card design app for iOS devices.

While it retains many of the outer features of the iPhone 4, the iPhone 4S runs on a A5 processor and features camera improvements and a new wireless system aimed at better call quality and faster download speeds. But it’s the iPhone 4S’s voice-controlled features that make this model stand out, according to our initial report on the iPhone 4S:

Apple also offered more details on iCloud, the cloud-based storage and syncing service that will replace MobileMe. A new geolocation app called Find My Friends joins the other iCloud features Apple first unveiled in June. Users can sign up for iCloud on October 12.

October 12 is also the debut date for iOS 5, the next version of Apple’s mobile operating system. That’s about the extent of the news Apple unveiled about its iOS update on Tuesday; the rest of the presentation largely recapped iOS 5 features first announced in June.

While Apple’s invitation to Tuesday’s event highlighted the iPhone, the iPod lineup also underwent a modest revamp. The iPod nano saw its price cut on both the 8GB and 16GB models. Its multitouch display also features larger icons to make it easier to navigate through the music player. The iPod touch now comes in a white model, and the price of the 8GB touch fell $30 to $199.