Here is a post on using Mozilla's Ubiquity interface to query Drupal API.
http://joshhuckabee.com/drupal-api-ubiquity-plugin

I do not use Drupal very much so not sure how useful this is for you. I have become pretty reliant on ubiquity for map look up, twitter, tinyurl, etc.

If you are interested in just reading more on Ubiquity:
https://wiki.mozilla.org/Labs/Ubiquity

Cheers,
Gregg