I think they are only going to be using Yahoo small business service now for hosting. If you read it closely it talks about Geocities and the Free Geocities Websie. We use to have Geocities Plus for $8.95 a month and they changed us over to Yahoo Small Business for $11.95 or $12.95 a month.
Here is the link to the Yahoo Small Business Hosting. I don't think they are shutting this one down. This plan actually has backups for so many days if something happens to your website too. Its a way better service.