Cool dashboard widget for PHP developers on OS X

If you are one of those who spends his days chugging along coding on a Mac then this widget might be handy for you:

PHPfr (PHP function reference)

It is quite fast as it involves NO network access. It would be good if it was extensible because then we might just add ruby and rails, and other framework docs (like drupal, cake php, etc.) to it.

And a screenshot for you: