Let them finish the HTML5 exporter first.
Then maybe, they'll consider other exporters.
The subject has been discussed many times already, it always comes down to :
* Scirra has plans
* Scirra has the biggest todo list you've ever seen
* Scirra focuses on their roadmap and making the HTML5 exporter the more complete/stable possible.
For now, you have to settle with the current methods available. (iOS webapp, phonegap), maybe, in the future, they'll focus on a mobile exporters.