Apple has sent out an email to registered iOS developers letting them know that it is now accepting submissions for iOS 4.2 apps. According to the email, which was submitted to iLounge by a reader, the apps need to be built, tested, and compiled using the iOS 4.2 SDK GM seed and iOS 4.2 GM seed released yesterday before being submitted for review “so they can be ready when iOS 4.2 is available to iPad, iPhone, and iPod touch users.” In…