The original goal for this was to allow Mirah to be used in places where Java source is required, like GWT apps. We've kept it going over the years (thanks to Ryan Brown, my co-conspirator).
Android is an exciting use case for Mirah. The other JVM languages run into the runtime library and performance problems mentioned towards the beginning of the article.
I did manage to generate a GWT application from Mirah=>Java once, but the Java source required some massaging. So it's close, but not quite there yet. Soon.
The original goal for this was to allow Mirah to be used in places where Java source is required, like GWT apps. We've kept it going over the years (thanks to Ryan Brown, my co-conspirator).