In the last updates, I did a quick port to JavaFX 1.2 and evaluated its performance again (and again). But as I keep playing with this benchmark and learning JavaFX, I added a few extra enhancements:
New options of 512 Balls (desktop) / 128 Balls (mobile), and Adaptive 60fps. These make easier to compare to some other versions of Bubblemark.
Binding-related enhancements recommended here.