We'd like to create a subproject similar to ScramJet which can work with Flash. An initial proof of concept would just do something as simple as put display objects described in MXML into a container at runtime rather than requiring them at compile time. MXML could even be a predefined String to start with.
Ultimately this would perhaps use a universal markup like IAML which would have to expand in definition to accomidate some reasonable subset of MXML.