BPBible 0.3 has been released. This adds many new features and fixes some bugs.
Details on what has changed are available here.

Changes to BPBible 0.3 include:

• Header bar
  This is a feature unique to BPBible. It is a bar at the top of the bible window which has all the surrounding chapters on it for easy access. It also allows you to view an overview of each chapter. This is easier to try to see than to describe:
  
• Book Installation
  You can now easily download books and install them. Remote installation, however, is not supported yet.

The header bar allows you to easily navigate within the surrounding chapters.
In this screenshot, the mouse is hovering over the Matthew 5 chapter tab. Moving over Matthew 4 will give a list of the headings in Matthew 4.

You can click on each of the headings to go to that section in the Bible.