Microsoft's dual-screen Surface device may use liquid-powered hinges

Rumors and patent leaks related to Microsoft’s still fabled foldable, dual-screen Surface device have been swirling around since 2018, with one even hinting at a 2020 release of a foldable Microsoft Surface with Android app compatibility. And yet such an actual device still has to be announced or revealed.With Microsoft’s October 2 event mere weeks away, however, during which the Redmond behemoth is anticipated to release new Surface hardware as well as some Surface accessories, it&r