Today we are happy to be able to announce the availability of some Silverlight 4 book content. For existing Silverlight developers looking to get up to speed quickly with the features we are releasing the Silverlight 4 Overview. This is a little over 50 pages of content covering the new Silverlight 4 features. For the rest of this week using code SL4DaveBlog at checkout you can get the new Silverlight 4 content for only $5 almost half off the normal price. More details on the book site http://www.silverlightjumps...