1) In WordPress go to Tools Export and click on the Export button
This will give you an XML file to save to your computer in the WordPress eXtended RSS or WXR format with all your posts, pages, comments, custom fields, categories, and tags. Excellent for loading to another WordPress Blog.
2) You need to convert this WXR format to something blogger can read, so got to http://wordpress2blogger.appspot.com/
Load up your WXR file and you will get a file back in blogger format. All powered by the Google App Engine (thanks guys)
3) Go to blogger dashboard and click import, select the file you got from 2) above
One thing to be careful about is it will also pull in your draft posts from WordPress, so I recommend that you don’t check the box to publish right away, better to review and publish after the import.
So now I have all my blog posts on blogger as well as on wordpress, next problem to solve is if I could keep them synched up automatically, which I think might be a more difficult problem.