Summary view to list by taxonomy term, with link to nodes

Please look at the module snippet provided in this issue
http://drupal.org/node/223700

Quoting Notes by Original Author:
Created a very simple view-type plugin (based on the examples from the views bonus pack) to create a directory-like listing of nodes-by-category. Not too dissimilar from tree lineage, but it actually displays links to the nodes themselves, embedded in the taxonomy tree.