After browsing web sites through the cloud there is no reporting data showing in the portal.
This is seen with a new cloud customer account.
As of the writing of this document the reporting data is buffered for 128 page views before it will show up in your portal. With high user activity through the cloud it is normal to see data almost immediately show up in your portal but for new accounts with a small amount of browsing it may not show up immediately until the 128 page views is hit.