Ask HN: has anyone used Keynote Kung Fu?
keynotekungfu.com
keynotekungfu.com
As a set of templates and design elements, Kung Fu is really awesome. Definitely money well spent and the buttons/UI elements more or less cover everything I've needed to do.
To me, the question comes down to what software do you prefer to use for protoyping: Keynote, Balsamiq, Omnigraffle?
Keynote seems to have the best alignment, auto-positioning, etc and a really easy to use UI. The only downside (imo) is that Keynote only allows you to edit in 1024x768 or some similar canvas size, whereas Balsamiq lets you go as large as needed.
If you're already using Keynote, get it for sure.
True that the final product is more styled, but that's when you have to work closely with the designer to make sure they understand you're not implying that's what the final visual style needs to look like.
I've also used KNKF for doing mockups for usability testing, which works very well.
The built-in components are great if you're using mainly the standard iPhone look. My only drawback would be the lack of a 'master' slide with the iPhone in the background, but it's easy enough to put together.
Certainly worth a few bucks to see if you and your team like it.