There are many apps for reading Wikipedia. Prometheus is different. It's an editor for the Simple English Wikipedia.
Simple English Wikipedia is like regular English Wikipedia, but it's written with simple words and grammar, so kids and non-native speakers can easily grasp it.
Simple Wikipedia makes a complex world comprehensible. Use it to teach what you know to someone who wants to know it.
For more information and announcements, check out the Prometheus Blog.
The Prometheus development blog covers programming details, if you're into that sort of thing.