One notable set of components that dont have spark equivalents are the charts. It looks like existing mx charts work fine with mobile and tablet devices, but I am sure there is a lot of scope for performance improvements.
One simple approach I have seen is here [1] Any other approaches that anyone has seen or would recommend? I would be playing around with approach a bit and will be posting on my whiteboard when I get a chance. Thanks, Om [1] http://coenraets.org/blog/2010/09/building-lightweight-mobile-ready-charts-with-fxg/