N94 is the code name given to the iPhone 4S terminal that Apple would launch this fall and it seems that the terminal was already registered at the FCC in the USA. The FCC is the government agency with which all mobile phones sold on the American market must be registered and it seems that Apple has already registered, so the official launch cannot be far away. The iPhone 4S with the code name N94 is considered to be the cheap version of the iPhone terminal that will be released this fall, and I for one believe that this will actually be the iPhone 4 8GB terminal that will replace the current models available in the Apple Store. The rumors that have appeared so far about the iPhone 4S claim that the terminal would have hardware similar to that of the iPad tablet and an identical design to that of the iPhone 4, but we will find out more only this month or next month.
The proof of registration was found in the system files of iOS 5 beta 7 in the form of an image called RegulatoryInfo-N94AP@2x~iphone.png which is displayed in the menu Settings > General > About > Regulatory, where Apple publishes all the certifications obtained for iPhone terminals. iPhone 4 GSM has the FCC code name BCG-E2380A, iPhone 4 CDMA has BCG-E2422A and iPhone 4S has BCG-E2430A so we are talking about a new device. Unfortunately, the FCC has not published the application for registration of the iPhone terminal, but will do so as soon as Apple officially presents the device.
If the device already has an FCC registration number, it means that it will surely be launched on the market, now it remains to be seen when this will happen
