Provide a product migration guide from your sister products (e.g., silverlight controls, radcontrols) which presents use cases such as: "If you have a asp.net radgrid such as...  you could do the same task similarly with KendoUI by..."   

Having complementary examples implemented using your various product types instills a bit of confidence that interfaces created in one environment could potentially be emulated or duplicated in another.  With maybe some best practices or "known gotchas".