It has been a long time since you post this but anyway I think it is the right place.
I am now using Catch for iOS and Android, for now the reporting is done in the console.
I had a little thing to alter is that I use the "debug" stream to redirect the output to LogCat which works perfectly fine for now.
Later I would like to see if I can use the JUnit output somehow through LogCat but this would be another story :).
Thanks again for this easy to use and really easy to integrate framework.
Julien.