Well, I finally got around to porting my Backup & Migrate Cloudfiles module to run on Drupal 7.  Some very minor changes to be noted:

• Dependency on the Token module is only needed if you want to see the list of available tokens as the basic token functionality has been moved into D7
• Token names have changed slightly from D6.  The module code is still the same, but if you migrate from D6 to D7 with this modue intact, you will need to update your meta tags.

Note that it is a "dev" release, which means it's a first cut and has been tested on three different installs of my own (pristine D7 outside the Rackspace Cloud, pristine D7 inside the Cloud, and a production server inside the Cloud) and appears to be functioning as expected.  If you install it and have any problems whatsoever, please open a new issue in the project queue.