I don't know about the current progress of the iPhone version, but if you manage to assemble a stable release in the next couple of months (deadline is September 30th 2010; the earlier, the better) you can participate the Palm PDK Hot Apps programm.
The only thing you need to do is port the iPhone App to WebOS wich appears to be really easy.
There are cash prizes up to 100.000$ for the most downloaded APPs (there's not much competition).
http://developer.palm.com/index.php?option=com_content&view=article&id=2085
Just wanted to let you know,
dr fnord