> So a single application is going to need to cope with a 4" touchscreen display with no keyboard or mouse as well as a multi-monitor setup without touch, but w

> So a single application is going to need to cope with a 4" touchscreen display with no keyboard or mouse as well as a multi-monitor setup without touch, but with a keyboard and mouse. Yes, it reflows. You use the app when it's in phone mode, and you get the full desktop-style UI when in Continuum mode. There are several demos online. See for example, from April 2015 (so it's surprising you haven't seen it before): Windows 10 Continuum for Phones LIVE DEMO https://www.youtube.com/watch?v=Sc1efHpPIVo https://www.youtube.com/watch?v=Sc1efHpPIVo More recently: Enhanced Continuum For Phones demo (Build 2016) https://www.youtube.com/watch?v=tv5Y9vNOSMc https://www.youtube.com/watch?v=tv5Y9vNOSMc