I am generally not a fan of common run-times for clients, it took the JDK years to iron out the bugs and they are still not competitive on the client side. Gene

I am generally not a fan of common run-times for clients, it took the JDK years to iron out the bugs and they are still not competitive on the client side. Generalization is the antithesis to customization, which is what you want when we are talking about usability. A better solution is to implement as much logic as you can get away with behind REST services, and then make each platform a client to the services. This makes implementing new clients less burdensome, as it just becomes a different customized, for the platform, workflow to the overall system.