This article discusses software internally used by Apple.
Acquiring a copy without Apple's consent is illegal and may result in being scammed.
Apex 8A2062a is, apparently, an internal firmware used for testing. It was discovered on an iPhone 4 (iPhone3,1), but may have been in use for other devices. The firmware has only been seen running Inferno, therefore the apps available on SwitchBoard.app are currently unknown.
This has been seen on the second leaked iPhone 4 from Vietnam.