The nice people at ps3-themes.org have updated their copy of the Tango theme to link to this blog, and credit me properly (thanks Jason).
I'm not too fussed about being credited as it's mostly work by the Tango artists (special mention to Jakub and Ulisse for the Sony hardware related icons) appearing (took me 2 evenings to do, still), but rather the fact that people don't get the whole story going to a resource website like that one.
No updates, no copyright information, no links to sources.
FYI, the source code is:
Feel free to ask for more information about specific icons. I'll also make sure to include this information in future releases (ie. when I know how to replace the missing icons).