APPLE JUST PATENTED A TRACKBALL APPLE PENCIL THAT WORKS ON ALMOST ANY SURFACE
Apple has been granted a patent for a next-generation Apple Pencil equipped with optical sensors that can track motion, orientation, and position in 3D space, allowing users to draw on any surface—or even in mid-air—without needing a touchscreen. The stylus may feature technologies like optical flow sensors, laser speckle tracking, internal trackballs, and other advanced sensors, signaling Apple's ongoing push toward spatial computing beyond traditional devices like the iPad.