If there is one AIR application that I love, it's called Mockups from Balsamiq.
In September, Peldi the creator of this great tool asked if it was possible to add internal link support and fix the outlines feature in AlivePDF in order to add PDF export to Mockups.
This was added and Mockups, and there you go :
Mockups is now able to export nice and interactive PDF's to print or illustrate your mockups.
Here is an example of what Balsamiq Mockups could generate