Well, I've made some progress on the functionality.

it currently reads in the calibre library file, displays a list of books (only the calibre ones, not the ones from the eDGe library).

You can select a book and it will open with the default viewer (which means it will open on the eink side if you select 'Library'.

I will now start on making it more 'Pretty' and I want to get filtering working.

andy.

p.s. There is an apk file on my google code website (see my original post)