2011-08-06: UPDATE: now available from my drupal.org sandbox
Of course, at the time, the module was for D5. Various people expressed interest for the concept, including a note by AgentRickard about a possible update to his existing Drupal gadget container, module MySite, of a similar feature.
However, nothing seemed to come out of the discussion, and the subject just drifted.
If you want to try it in your iGoogle
, the module is enabled on this site at http://blog.riff.org/gadgets/api
UPDATE 2018-04-14: you will need to port the module to D8. Since iGoogle was deprecated by Google and the Gadgets API around 2014, I never ported the module to D7 or D8.
If anyone finds it useful as a starting point, I can of course put it in my d.o. sandbox or create a project for it so we can further evolve it.