Sony PRS-T1, Android, and OPDS
After a few missteps, I eventually managed to have everything configured as I wanted (tip: disable animations in Android general settings). And I have a rooted PRS-T1, with FbReader, Coolreader and a few other things installed.
This is cool ! I can either use the vanilla Sony launcher (nice as it is) and choose another reader software when I load a book, or use another launcher (less nice, more adapted to Android phones than EPD) and (for example) FbReader to browse my OPDS catalogs.
Here are some screenshots :
I still need to contact Coolreader developer to ask him how I can add a custom OPDS catalog to his app, because I like it better than FbReader.