There's a new playlist of videos for those who want to try out Flow Wedging.
Flow Wedging allows you to submit a simulation with variations of a parameter ("wedges") to the cloud, freeing up your computer's resources to work on other things while you wait for the results. When they are ready, you can easily load the generated caches to compare. It is a token-based cloud capability.
Check out the Flow Wedging tutorials by Hernan Santander (also known as "Sepu") on the Maya Learning Channel. You can also read more about wedging in the Bifrost help here: Flow Wedging.