iProcessing looks like it should be excellent, but I can't find any documentation for how the heck to get started. The closest thing is this post on CreativeApplications.net from early 2010, in which the author notes that they couldn't actually get the examples to work on their phone (though a couple of commenters seem to have had more luck). It seems like the actual creators forgot to explain how to do anything with their work, and decided against providing any obvious way to contact them?