http://blogs.technet.com/b/lystavlen/archive/2012/03/30/sharepoint-online-extra-storage-price-drop.aspxSince the beginning of March customers are no longer capped at 5TB for SharePoint Online storage and they may consume up to 25TBs. Default SharePoint Online storage for customers is available based on the following equation : 10GB + (500MB * no ofen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)