Microsoft has released a guide on how to build apps for the dual-screen Surface Duo using the Flutter SDK.

The company's flagship developer event, BUILD, begins tomorrow. Like many events this year, it will be entirely virtual due to the COVID-19 pandemic. This year's event is likely to be a big one, and it seems Redmond is preparing developers early.

Flutter will require little introduction for many of you; but, for the rest, it's Google's UI toolkit for building native...