We've seen dozens of patents pertaining Apple's engineers and these keep us hoping that we'll see new iPhones or iPads with super features. According to PatentlyApple, Apple was granted yet another stylus design patent which describes a smart pen capable of detecting hand movements for translation into digital line drawings and text.
The U.S. Patent and Trademark Office awarded Apple U.S. Patent No. 8,922,530 for a "Communicating stylus," describing a smart writing utensil that uses accelerometers, wireless communication hardware and onboard storage to transfer hand-written notes and drawings onto the display of a digital device. Here are some more details:
Unfortunately, most of the patents like this one don't appear in real products, and if we take into account the huge efforts needed for a multitouch interface, there's a big chance this will remain just a dream for now.
Source: Patently Apple