Mixing Winforms and VCL.NET

One of the things that really shows the power of Delphi is that you can mix VCL.NET forms within your winforms applications and vica versa. This is really a great feature.
In this 'dirty' example a ClientDataset, Grid, DataSource and VCL Form are created on the fly, and it works just fine. It is however not possible to use the VCL desinger within the winform application.

Can't find the stringbuilder in the .net framework?
No problem, use the TStringList instead.
Delphi makes you feel like you are at home in the .NET framework.