You can create your own content as reference book, also called cheatsheet and import it into uRBook. The content is managed as books and chapters.
At the moment there's not much content for public use available. The only reference book available are some shortcuts for the linux texteditor vi.
Most of the content available at the moment is for inner use with my colleagues at work, but im planning to publish some public available content as soon as possible.
The only permission this app needs at the moment is internet-access. This is for advertising.
If you've got problems with this app, bugs or new features, please send me an e-mail to [email protected]