Using sample data can make designing your Silverlight 2 applications more predictable. Given some data, you have a lot of flexibility in designing around this data in Expression Blend. The challenge is that there are are many cases where you simply won’t...(
read more)
Read the complete post at http://blogs.msdn.com/expression/archive/2008/10/27/simulating-sample-data-in-blend-2-sp1.aspx