I've had several inquires about this. I'm hesitant to talk about what I might do in the future, but if the market is large enough for an iPhone app I would certainly be open to making one. Since GitHub has their own iPhone app I'm not sure how much of a market there is for a comercial iPhone app.

I think the market for a Mac app might be a bit larger, so I'd love to know what everyone thinks about a version of the app for either the iPhone or OS X.