Hi Kelvin,
You may want to refer below blogs to know more about Silverlight and Microsoft Dynamics CRM future.
blogs.msdn.com/.../the-future-of-silverlight-amp-crm.aspx
community.dynamics.com/.../the-future-of-silverlight-for-dynamics-crm.aspx
blogs.msdn.com/.../crm-and-silverlight-integration.aspx
I hope it will help you to find out what you are looking for :)
Regards,
Satish T