SAP Mobile Documents delivers not only several clients and a server component, but also an SDK that allows you to develop your own client. Some time ago, I wrote a blog about the development of a custom iOS client. See here:
I would like to make you aware of my two brand new how-to guides that have just been published on SCN. The guides show the development of a custom Java client and a custom Java Script client. I explain in detail what you have to do and what you have to be aware of when creating your own client, including prerequisites and necessary settings. You can even download sample code from within the guides.
So check out the following two new how-to guides: