The project runs under a Flex framework, at least that´s what they say in their blog. For the back side they ask for .NET, C#, WSDL and XML. Take a look at the video:
It looks great! Perhaps it´s too much to say that in a campaign you have to do seven thousand banners but the way it works looks fast and effective.
The cost is about 50 dollars every mont for little commerce, big customers should ask
Here is a slideshow about the tool: