With the newly-branded Office 365, announced this week, Microsoft has taken its BPOS (business productivity online suite) service and added Office apps options. But while Microsoft dumped a bad product name for a better one, the company repeated a longtime marketing habit with Office 365: a confusing array of versions and price points.BPOS today features online versions of Exchange, SharePoint, Lync (formerly Office Communicator) and Video conferencing tool Live Meeting. But with Office 365, currently available in beta and set to go live in 2011, Microsoft will roll Live Meeting into Lync Online and add Office Applications, either as Web apps or desktop software, depending on the version you choose. When Office 365 launches it will include 2010 versions of Exchange, SharePoint and Lync.One point worth noting: Microsoft is NOT putting the full client version of Office in the cloud with Office 365. It is offering the Office Professional Plus desktop version, which will run on a PC and not in the cloud, as part of the most expensive enterprise version of Office 365 ($24 per user, per month). What's new here is that Microsoft is offering a client version of Office for a monthly fee instead of its usual method of an upfront, full payment.Office 365 for Enterprises includes Microsoft cloud services and Office Professional Plus desktop software.As with BPOS, users will have the option to purchase the different components of Office 365 (Exchange, SharePoint, Lync) as stand-alone products. Confused yet? To clarify, here's a summary of all the information you need to know about the features, versions and prices of Office 365.Office 365 for Small BusinessesFor SMBs, which equates to companies with 1 to 50 employees and limited IT resources, Microsoft is offering a $6 per user per month version of Office 365.Included in the small business version are: \nOffice Web Apps for viewing, editing and sharing documents.\nExchange Online for e-mail, contacts and calendaring with access on PC, Mac, Windows Phone, iPhone, Android and BlackBerry \u2014 mailbox is 25GB with anti-virus and anti-spam included. \nSharePoint Online for Microsoft Office Access services, password-protected team sites and a public Web site. \nLync Online for instant messaging, presence, and video and audio conferencing. \nGuaranteed 99.9 percent service uptime. \n24x7 moderated community-based support. \nMicrosoft recommends that organizations that require Active Directory Federation Services, archiving for legal compliance, BlackBerry service or phone support should consider Office 365 for Enterprises.Office 365 for EnterprisesMicrosoft offers an enterprise version of Office 365 with different options for the C-level executives who need every tool, information workers who need most of the tools and deskless workers who only need the bare necessities.Enterprises can tailor their Office 365 purchase for different parts of the organization and only pay for what people need.For deskless or "kiosk" workers, such as a manufacturing shop floor worker who only needs basic e-mail, Microsoft offers a $2 per user, per month subscription. The plan includes a 500MB mailbox; Office Web Apps; Outlook Web Apps for e-mail access on a PC; the ability to view SharePoint sites; and a management console for IT managers to add users.The higher-end version of Office 365 for the enterprise includes licenses for Exchange Online, SharePoint Online and Lync Online for $10 per user, per month. This plan offers the same features as the small business plan with the addition of 24x7, IT-level support over the phone, Web or e-mail and also single sign-on capabilities with Active Directory deployment.Finally, the big kahuna version of Office 365 for enterprises costs $24 per user, per month. This includes the full functionality of Exchange, SharePoint and Lync Online, plus the desktop version of Office Professional Plus. Office Professional Plus is not itself hosted in the cloud; it is offered as an addition to the cloud services of Office 365.Office Pro Plus is currently available to Microsoft volume licensees, but not to those who buy at retail. It includes the full Office product suite \u2014 Word, Excel, PowerPoint, OneNote, SharePoint Workspace, Outlook, Publisher, Access, InfoPath and the Lync communications client. Office Pro Plus is the only client version of Office that Microsoft is allowing Office 365 customers to use.Office 365 for EducationMicrosoft has taken its free student e-mail system, the clunkily named Live@edu, integrated it with BPOS and rebranded it as Office 365 for Education. It will be available in 2011 for all eligible high schools and colleges. Live@edu currently includes a variety of free Microsoft services and apps such as Outlook Live, Windows Live Messenger, Windows Live SkyDrive and Office Live Workspace for storing and sharing Office docs.\n\nSlideshow: Windows Phone 7: Visual Tour of 10 Upcoming WP7 SmartphonesSlideshow: Seven New Windows 7 Tablets: In PicturesSlideshow: Windows 7 Hardware in Pictures: The Latest and Greatest Laptops\n\nMicrosoft is short on details about how Live@edu will transition to Office 365 for Education, but does state on its Web site that Outlook Live will become Exchange Online as part of the transition.Ultimately, schools will have services not currently available in Live@edu, such as advanced Exchange features, Lync Online, SharePoint Online, archiving, voicemail, and Blackberry support available for purchase with academic discounts, says Microsoft.Microsoft added that Office 365 for Education will include all the same features and support as the Office 365 Enterprise version delivered in a combination of free and paid services at academic pricing.\nMore details about the transition plan for Live@edu along with the pricing options for Office 365 for Education will come in early in 2011, according to a Microsoft spokesperson. Shane O'Neill covers Microsoft, Windows, Operating Systems, Productivity Apps and Online Services for CIO.com. Follow Shane on Twitter @smoneill. Follow everything from CIO.com on Twitter @CIOonline. Email Shane at firstname.lastname@example.org.