Surprisingly (to me anyway), Hit the Pothole runs with a completely free back-end infrastructure.  This website is all being hosted, for free, by Weebly.  The database - which holds the geo-spatial coordinates of the potholes - is being hosted by Google in Fusion Tables.
The iPhone application was built using the Appcelerator framework.

All the data for Hit the Pothole is held in Google Fusion Tables. 
The hit the pothole online database repository can be accessed here:
http://www.google.com/fusiontables/DataSource?dsrcid=1051716

Once there, you can use the options tab to restrict the data to a specific year, or pothole severity.

Then go to the file menu to export the data in CSV format.

Now go and strong-arm your local politician!