Requires iOS4 (not for iPad)
Uses Winterboard file substitution
This package will add a new Zhuyin keyboard layout like on your computer.
This modification is achieved by using a Winterboard theming feature for file substitution. You must first activate the newly added theme from the Winterboard configuration in the Settings app. This has to be done before you can view and choose the Optimized keyboard layout from Settings. See the screenshots below or contact the author for help.
See More Info below for Screenshots and further setup instructions