Just to update the people who are not keeping taps on what Gerrit Grunwald is doing, but he has his JavaFX application running on a Mac, Nexus 7, iPad, iPhone and this afternoon on an Android SmartWatch.
Here is the watch version http://www.youtube.com/watch?v=XpplIIIKZ2s Of course the different screen sizes require different layouts, but the code is shared between the devices as much as possible, so basically it's the same code base. #GoGerrit
