PB700 Newbie questions

I bought a Pocketbook Era almost a month ago, and while I love almost everything about it, I have a few newbie questions.

First, are there 3rd party apps for Pocketbook (and specifically the Era)? I found that someone had compiled KOreader for the Era, but I haven't found anything else.

I would dearly love to have a note-taking app that is not tied to a book. So, for instance, if I need to whip out something like a shopping list that is not related to what I am reading (but I am going to have the reader with me), it would be nice to be able to open a note not related to a book.

What other apps are available?

Also, since this is a linux device, is it possible to set up remote access via ssh and so forth?

Finally, is it possible to re-arrange the directory structure? Since I am an American, and don't speak any other languages, is it possible/advised to delete those and set up a directory structure based on, say, the genre of the book (SciFi, Action-Adventure, Technical, etc)?

Thanks,
--vr