this is the support site for the cartwheel mobile application, which currently runs on iphone, ipod touch, and ipad.
the user interface is very simple, just tap to navigate around the tiling, double-tap to randomly change drawing options.
if you want more control, you may want to try the web application
i have released this project as open source software, available under the terms of the GPL v3. you can find the source code on the google code project page
if you have any support questions, please post them as a comment to this post.
This is the support page for the Cartwheel mobile application.