We're looking at it. I'll probably go for mobile web first - 1 developer and a backlog of essential work that needs to be done. But I hear the call for Android, its definitely on the urgent list.
(edit to respond to edit)
What do you mean "just does splits"? It doesn't (at the moment) do a good job of explaining that the IOUs balance each other out: if I buy you lunch, then you buy me lunch, we're probably pretty close to balanced out.
I'm working with a great designer at the moment to try and fix some of the programmer-isms in the UI.