Unsure as to where to move this to. Have a generic 'Wiki apps' product perhaps?

The dependency is fixed.
I expect there is nothing stopping someone creating a Wikisource android app.

If someone wants to do this please go ahead using https://github.com/wikimedia/WikipediaMobile as a starting point. Any bugs for such an app should be filed under a new project on bugzilla.

I've already created a beggining of app from Wikipedia Mobile code with the help of Yuvipanda: https://github.com/Tpt/WikisourceMobile
This app is working fine, I think that it's ready for an integration into Wikimedia Github repo if WMF staff is OK to support it.
There are ever things to be done:
1 Create a logo
2 l10n

[Merging 'Wiktionary App'&'Wikisource App' into 'Wikipedia App', see bug 41922]