I confess that I didn't have much time to follow every release of Apache Royale but my question is: What is the state of Apache Royale MX Emulation ?
Can I convert and application with buttons, grids, alerts, etc ... ? The skin was implemented or is a wireframes ?
In order to check and see in what state Emulation components are is to try them yourself. AFAIK lot's of them are just displaying simple Div, so they need definitely more love in terms of UI. In order to see what classes from Flex has been part of Emulation components effort you can look to file MXRoyaleClasses.as in Royale repository. The second step would be look into RoyaleTourDeFlex which is an Example of how TourDeFlex was ported to Royale using those components. Of course source code of RoyaleTourDeFlex is part of framework repository.