There doesn't seem any point putting this task off any longer - it has to happen and now's good, so tonight's the night.
The old blog will continue to be hosted on the WCN site, but all updates and new posts will go to the version hosted on Blogger.com. Once the migration has completed successfully, I'll update the sidebar links on both sites to point to the new location.
The way this all works, you should not notice any disruption to your access to the blog, but to get future updates you will need to resubscribe once to the new location. I'll signal when you should do this.
Fingers crossed we all make it to the other side ;-)