It’s ready! Our newest component library includes Gantt Chart and Schedule Chart controls for WinRT. View the product information and download its trial version for free. The product requires Windows® 8 and Visual Studio® 2012 (Express edition is accepted).
They are available packaged both as a managed assembly (DLL) – for .NET developers, and as a Windows® metadata package (WinMD) – for all WinRT developers. Obviously, compared to the standard .NET assembly, the metadata package provides only simple properties instead of dependency properties, but the actual features are there too.