So it has to happen soon...   We'll be using our mobile devices with Silverlight plugins to connect to rich content over the Internet.

In preparation, I'm in the process of building/learning a Silverlight  2 version of this blog (just for the fun of it).

So,  as I go through,  I've come across a number of technical challenges.    The first,  is that I've been using my laptop to develop I simply I want to pull the RSS feed from my server to display nicely on a Silverlight powered web-page.

So to overcome challenge number 1,  we need to let Silverlight cross domain call and pickup the RSS file (i.e from laptop to server).    To achieve this you need to have a file called crossdomain.xml, sitting in the root of your website.   Mine looks like this.

<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy
  SYSTEM "http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
  <allow-access-from domain="*" />
</cross-domain-policy>

This is clearly a Macromedia format,  but Silverlight 2 recognises these files and lets you pull content from an Internet/intranet domain as long as it contains one of these files -

I got full details from here

http://www.crossdomainxml.org/

+ my inspiration for getting started with Silverlight, has been from Scott Guthrie's fab blog and specifically this tutorial (sorted) -

http://weblogs.asp.net/scottgu/archive/2008/02/22/first-look-at-silverlight-2.aspx