AppStudio for ArcGIS provides ArcGIS users with productivity tools for building your own cross-platform native mapping applications. Apps built with AppStudio for ArcGIS run natively in iOS, OSx, Android, Windows, and Linux. Windows Phone support is in the works.
CityEngine is 3D modeling software that allows you to create massive, interactive urban environments in less time than traditional modeling techniques. You no longer have to model each building individually, you can create a massive city all at once. You can also rapidly adjust the architectural style or other features of your city. The city that you create can be based on real world GIS data or showcase a fictional city of the past, present or future.