We are using the WrapPanel from the Silverlight toolkit
Because we don't need the whole toolkit assembly, we copy/paste the source of the WrapPanel and use that.
Instead of the whole full blown assembly
Should be fine with the license: Ms-PL
Figure: Size of Silverlight toolkit assemblies
“If you just need the WrapPanel, and don’t want to include the entire toolkit assembly, you can just paste these source files into your application project instead”
Sweet! Thanks Jeff!