“It is the dull man who is always sure, and the sure man who is always dull.” – H.L. Mencken
http://www.wired.com/gadgetlab/2009/12/diy-book-scanner/
DIY book scanner, as stated.
http://blog.makezine.com/archive/2009/12/open_source_hardware_2009_-_the_def.html
http://www.taskcoach.org/
Interesting for desktop software.
http://www.redmine.org/
Also interesting for project management, and possibly even change management depending upon ease and flexibility of workflow configuration.