Why hello there dear attendee! 
It looks like you received a coupon to obtain a free license of Xceed DataGrid for Silverlight valued at $400.
We've made what we believe to be an extraordinary new datagrid. With only a couple of lines of code to connect to various kinds of data sources exposed through web protocols or services, such as OData, you can now achieve some pretty advanced user experiences and do away with outdated "paging" interfaces. Namely, we've taken data virtualization to a whole new level.
Take a look at this HD video showing the grid with Netflix's online OData catalog. See how page downs and mouse wheel scrolling yield immediate results instead of freezing the user interface and waiting for the server to send over a new page of data: http://snurl.com/netflixvideo
Or try it yourself with Silverlight 4 right now: http://snurl.com/netflixdemo
If you like what you see, then it is definitely worth getting your free license. The way it works is simple: use your $400 coupon to buy the product, but end up paying nothing.
Here is the link to add it to your cart. Enter your coupon when at the cart. --> ADD TO CART
Contact me, odi@xceed.com for questions or comments.
Thanks, and we hope you love the product and talk about it. If nobody knows about it they might never know what they are missing :)
Odi