We are currently in the process of porting our WPF chart control to Silverlight and the Silverlight version of the control should be available with the Q1 2009 release in the end of February. Once it is released you should be able to plug it in ASP.NET applications using the same approach as demonstrated here
for the RadGauge integration in ASP.NET.
That said we do not plan enabling pure WPF server-side rendering for ASP.NET as such process would require quite powerful graphics capabilities on behalf of the server workstation in order to render a decent image and we do not believe this is the case with the majority of the currently used web servers.
Also, we do not have immediate plans of implementing bullet graph but we will consider it for implementation for one of the future releases of the WPF / Silverlight chart control.
the Telerik team
Check out Telerik Trainer
, the state of the art learning tool for Telerik products.