There is a demo Amazon ec2 image running here http://ec2-67-202-29-156.compute-1.amazonaws.com/drupal this is an updated image that is using Fedora 3.1 and Drupal 6. The ami has both Drupal and Fedora installed. The disk space available to for this image is limited. If you use Amazon's EBS you could get upto a terabyte of space. There is also a S3 adapter written for Fedora that could be used.
If you have an Amazon AWS account you can launch your own version of the image. The updated public image name is ami-f16a8d98. The old Drupal 5 Fedora 2.2 image is ami-e9d23680.
Once the image is started you will have to login to the newly created image using ssh and start Fedora. To start Fedora cd to /usr/local/fedora/tomcat/bin and type ./startup.sh. This will start Tomcat which will bring up the Fedora web application. You will then be able to use a browser to view your new ami instance by browsing to the ami's public DNS address.