Google has backed an effort to standardise touch-screen styluses so they can be used on many devices. From a report: The Universal Stylus Initiative (USI) was launched, in 2015, to encourage companies to produce styluses that work on rivals' products Dell, Intel, Lenovo, LG and graphics tablet-maker Wacom have all backed the project. However, Apple, Microsoft and Samsung have not. One expert suggested the big brands would keep their proprietary pens. Styluses designed to work with modern touch-screen devices and graphics tablets usually contain sensors to detect pressure, movement and orientation of the pen.