[septerr]

You are getting psds of iphone's own user interface...so that you can then put the mock up of your application inside it for say client presentation or to see how your app's design looks on the iPhone or to see if your app's design meshes well with iphone's aesthetics.

[FilterSweep]

I understand how this works in terms of mockups and how useful it can be - where it gets confusing is in tools like Origami which uses Facebook frameworks:

>Origami can now export code for the parts of your prototypes you used to have to tediously spec to engineers. Now with the click of a button, you can deliver your animation specs as code to your engineers that they can copy-and-paste into the project.

> This uses our _free, open source_ animation frameworks to deliver the exact same feel across all platforms. Take a look at some sample code this can generate and learn more about it.

Which runs in direct contrast with the above License:

> The Facebook Design Resources may not be embedded in any software programs or other products without express written permission.

Unless Origami isn't considered a "Facebook Design Resource" (and is a different type of resource, correct me if I'm wrong here), this seems like lawsuit bait.