Microsoft has release Silverlight v.2!
You can download the new version from silverlight.net at or you can download it directly from Microsoft download at http://www.microsoft.com/downloads/details.aspx?FamilyId=c22d6a7b-546f-4407-8ef6-d60c8ee221ed&displaylang=en
To get started, here is a video posted on Channel 9 with Scott Gu giving a demo of the new version:
Scott Guthrie: Building a Silverlight 2 application
Also, check out the Silverlight 2 End to End Tutorial: Building a Digg Search Client available from Scott Gu's blog. It's a great way to get experience. You can read all about it here.