WorldWidetech & Science. Francisco De Jesús.
The iPad2 is the first iOS device to ship with the A5, Apple's new dual-core processor that succeeds the A4. The A4 had been released first on the iPad before making its way to the iPhone 4, then later to the iPod Touch and Apple TV.
Riffing off the discovery of the A5 processor´s code name within iOS 4.3's code by Chronic Dev Group member Chronic, iOS developer Filippo Bigarella found mention of "N94AP", a code name that would signify a yet-to-be-released iPhone based on past device code names. The N94AP mention was then linked up with "S5L8940", the name for the A5 within the iOS code.
Source: ZDNet Asia.