Now a sizable business, Google Apps (GOOG) will no longer be provided for free to groups of 10 users or less. Google charges $50/users/year to paid business users, who get customer support and 25GB inboxes for their trouble. Sources tell the WSJ Google is now generating ~$1B/year from Apps, used by 5M businesses, and mapping software sales. This has made it a headache for Microsoft's (MSFT) Office cash cow, though many large enterprises remain loyal to it. Office 2013's subscription pricing seems to have Google in mind.