The google_gadget module is now available directly from my sandbox on drupal.org, at http://cvs.drupal.org/viewvc.py/drupal/contributions/sandbox/fgm/google_gadget/.
It should make it simpler to use than having to gather the pieces from my post explaining the module.
2009-05-24: UPDATE: now ported to D6
Having recently discovered the
Google Gadgets API, and being
on vacation this week proved too much of a temptation: I
had to build one using Drupal. Here is a way to do it,
as a module creating a Google Gadget to directly
search http://api.drupal.com/ from the
iGoogle home page.
User preferences allow searching the various versions of the API
and default to Drupal 5.