I've updated the OmniGraffle Wireframe stencils. In this release the following elements have been added or updated:

* New callout styles added
* New forms elements added: contextual help, captcha
* Tabs and controls added
* Some commonly used icons have been added

I think I will have more of the icons to come, and may eventually separate the icons from the wireframe stencil if there ends up being too many. Since the set is small for now, I'm keeping it in this document.

Download the updated stencil now.