I've lost the ability to export to a Mac App, the option doesn't appear in Build Type anymore in the applications properties.
I've tried uninstalling and re-installing.
[update] i've tried reinstalling (by uninstalling first):
mmf2macexpsetup_beta_en_130518.exe
mmf2macexpsetup_beta_en_130805.exe
with no luck, ive also tried the 130518.exe build and then upgrading to 130805.exe still no joy.