Surakarta for the iPhone/iPod Touch is now available for download. (Link opens in iTunes.) I haven't yet been able to find it directly by searching, but hopefully the App Store index will update shortly.
I'm currently working on version 1.1, where I'll add single-player support. In the meantime, download Surakarta and write a review!
UPDATE (6:04 pm): Sometime in the last 10 minutes, it showed up through search. Hooray!
Today I'm releasing Surakarta v1.0 for the iPhone (and iPod Touch). It's based on a traditional Javanese game and was included in "The Book of Classic Board Games" published by Klutz Press, under the name "Roundabouts." It currently only has two-player mode, but I plan to release an upgrade to support single-player play (against a computer opponent) soon.
I hope you enjoy the game! For feedback, please e-mail me.