Not dictating anything, but if the reasons for not releasing it are "it's not feature-complete" and "I don't have time to make it feature-complete" wouldn't releasing it as free software and let others extend it be the solution?
Edit: excuses didn't ring well. Reasons is more neutral
A bit off topic, but I would pay good money for a well done port of Pharo Smalltalk to the iPad. Not sure what the issues would be for Apple to permit this. There are good Haskell and Python IDEs for the iPad: Raskell and Pythonista
To me, this is a 10x developer. Some developers make an app for their side project (which I assume this is) -- but they made a whole interop with their own VM just to make an app.
Edit: excuses didn't ring well. Reasons is more neutral