I think it's doing both. Exposing native APIs for non UI related APIs, and providing an abstract UI layer that works across all devices. The article says: "Cros

I think it's doing both. Exposing native APIs for non UI related APIs, and providing an abstract UI layer that works across all devices. The article says: "Cross Platform UI abstractions - available will be full UI abstraction to build the application UI. All the UI code will be shared - you do not need prior Android, iOS or Windows knowledge."