I recently developed and published an Android Game, called ColorChange. I didn't think of it as related to Go in any way in the first place. But someone said it made him think of it while playing. While it is not any representation of Go in a digital form, it has a similar feeling to it.
First of all, you play on your own. Besides that, you play with 6 colors instead of black and white. You start with a field of different colors, which you now have to turn into a field of one single color. You change colors by surrounding them with another color, which is the similarity to Go.
Maybe some of you might be interested. You can download it here: https://play.google.com/store/apps/deta ... ns.colorit
Let me know what you think of it.