This IOS app lets you classify Galaxy Zoo subjects. It's available on the app store: https://geo.itunes.apple.com/us/app/galaxy-zoo/id363499733?mt=8 . See also the Android app: https://github.com/murraycu/android-galaxyzoo
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So far this is an example of how this doesn't work. Hopefully it can become an example of how it should be done. See http://stackoverflow.com/questions/30998946/auto-layout-of-a-child-container-that-embeds-a-uiviewcontroller
Public repository.
Some experiments with projection of 3D (or 4D) shapes to 2D wire-frame drawings, with Processing.org
Public repository.