Well definitely not packed in mothballs yet – this is pretty big news because most devs I know were thinking MVC was the total focus for MS web development.  Looks like there is still some serious work going into webforms:

http://weblogs.asp.net/scottgu/archive/2011/09/05/web-forms-model-binding-part-1-selecting-data-asp-net-vnext-series.aspx

Dom