The source code is maintained open to the public at Google Code.
On January 17, 2010 Box 2D moved the project to Google Code for hosting.
Development for the project is being done on Google Code.
From 2006 until 2010, Google Code only accepted projects licensed only under the following licenses:
Download of version 2.0.10 (posted at Google Code) was 1167k.
The project was started in September 2005 and as of 2008 is now maintained at Google Code.
The source code is free and is hosted in Google Code.
The first version of the library was published on Google Code in February 2011.
Development subsequently moved to Subversion on Google Code to ease production.
As for Reaver, it's easy to get off of Google Code.