At this time, we have no plans to develop Photosmith for anything other than iOS (iPad). To do so would require a complete rewrite of the application, and right now we don’t have enough resources to improve Photosmith on iOS as fast as we would like.
In the future anything is possible, but right now we need to focus on making one great product instead of two or more poor ones.
You may vote in support of this idea. We closely monitor to the voting and it does affect future development efforts.