SmartGo iPhone
SmartGo iPhone was a commercial Go program from the author of SmartGo for the iPhone and iPod touch. It has since been replaced by SmartGo Kifu and SmartGo Player, which work on both iPhone and iPad.
There were two versions of this program:
SmartGo iPhone a go playing program that plays on 9x9 11x11 and 13 x13 boards Web site: http://www.smartgo.com/en/smartgo.htm SmartGo iPhone is available from the iPhone App Store. http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=314506629&mt=8
and
SmartGo Pro has over 15,000 games and 2,000 problems as of version 1.5.1 (23 December 2009).
Both programs can be localized in English, Japanese, Chinese - Simplified, Korean, German, French, Russian and Polish.
Web Site: http://www.smartgo.com/en/touch.htm
SmartGo touch Pro is available from the iPhone App Store. http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=290948286&mt=8
The average average for SmartGo touch Pro rating is 4 stars! Over 20 5-star reviews in the United States App Store.
SmartGo touch Pro was rated 4.5 mice by Macworld. http://www.macworld.com/article/139740/2009/03/smartgotouch.html
The price is $9.99 (as of April 2009).