One of the best things about finishing a product is going back and reviewing the steps that got you there. TapTapTap put together a video that steps through the designs that they went through to get to the final version of the UI for Convert.
Convert is an iPhone application for converting values between currencies, measurements, dimensions, etc. Here’s the video.
You can read more about the video on TapTapTap’s blog.
That is pretty cool. Maybe I should be taking screenshots of my designs as they progress.