Embarcadero is actively extending Delphi and C++Builder, and their mobile FMX cross-platform is (in my opinion, and we use both) a lot easier than VS/Xamarin. C++Builder IDE supports drag/drop GUI development, unlike C++ VS. We have used Borland/Embarcadero C++ for our major applications since OWL, and have never had any show-stopper issues. C++Builder now uses Clang as the back-end compiler, so language compliance is about as good as it gets. C++Builder + FMX + the excellent framework-neutral 3rd party controls from TMS Software together allows us to target Windows, iOS, OSX, Android and soon Linux from a single code base. Borland->Inprise->Embarcadero has been a rocky road, and more than once we considered and essayed (for commercial, not software reasons) porting to VS, but it was just too hard. So we stuck with them, and lucky for us Embarcadero seems to be going gang-busters, though still a minute market share cf Microsoft VS.

DaleC