I have a c#-program, that works well under Mono and on OSX, I also was able to create an app-directory for that program. Now I want to distribute it, but I don\'t want to force
Ask Miguel (December 9 2010 blog post)
MonoMac: we just released MonoMac 0.4 and we are now adding support for creating self-contained application bundles that developers can redistribute themselves or even submit to the Apple AppStore for MacOS.
MonoMac has been a lot of work, mostly, due to popular contributions. There is a nice emerging community of new contributors to Mono that has sparked in the last few weeks.