In this post Gill Cleeren is looking at another new feature in Silverlight 4 which is the support for webcams and microphones.
Silverlight 4 gets support for microphones and webcams. It has access to the raw streams for both. The added support opens a lot of opportunities for new types of applications. For example, it becomes possible to write an application that reads barcodes of products you hold in front of the webcam, scans them and searches for product information.