Recent Apple patents hint at new features that could appear in future iPhones.

In April 2008, Apple acquired semiconductor company PA Semi to manufacture ARM chips for future iPhones.

Read More The real long term significance of MagSafe may be that it's the only way to charge future iPhones.

Using a hybrid OLED display, Apple could get power savings of up to 30 percent in future iPhones and iPads.

On Tuesday, Apple was also granted a patent relating to providing information based on object recognition, which could appear in future iPhones.

And considering the enormous cost of developing this chip, iPhone owners can have faith that the A4 will most likely appear in future iPhones.