The iPhone 6S hasn't even been announced yet but sources say that it will likely be one of the biggest updates to Apple's mobile line and rumors are already flying around of what else we can expect. In addition to having improvements for older devices, the upcoming iOS 9 is said to support the Force Tough feature, which allows pressure sensitivity and haptic feedback, just like on the Apple Watch and the new MacBook. If integrated into the new system, it will get rid of some control space issues and other "press-and-hold" problems. Additionally, the update will improve iMessage, enabling you to turn off read receipts for various contacts and keep them on for others, along with some tweaks that will be made to other functions like Apple Pay. Stick around for more details and read more Apple news here.