TruDat is a simple to use Mashup that allows you to sort through the data supplied by trulia.com to find the house you want. TruDat also incoporates a images from flickr.com. One special aspect in the User Interface design is the using the colum navigation control created by David Lindquist (ColumnNav) to do what I would call UI folding. The column navigation control circles through the user interface hiding the information that is no longer needed.