At a press event in New York City, Microsoft CEO Steve Ballmer rolled out the general availability of Microsoft 365 , an online suite of productivity apps which includes Microsoft Office, Microsoft SharePoint Online, Microsoft Exchange Online and Microsoft Lync. It is "where Microsoft Office meets the cloud," he says. Microsoft first announced Office 365 last October, and has signed up 200,000 business customers since then. Office 365 is all of Microsoft's cloud productivity apps rolled into one service. It includes Web-based email, shared documents, shared calendars, instant messaging, video conferencing and Web meetings, and websites. Customers can pick and choose which apps they want and pay a monthly subscription from $2 to $27 per month.