javafxgui and scenario were refactored into a single project which is called runtime
( you can get it here ssh://jfxsrc.sfbay.sun.com//javafx/marina/scrum/graphics/runtime/ )

Many of things from scenario were factored into shared FX implemented layer. Key events handling was a part of it. As a result I think input method handling was not rewired yet and most likely does not work with the latest sources.