Microsoft Online Team has posted this interesting information

Today, we kick off our Worldwide Partner Conference in Washington DC. Among the many cool announcements happening this week, we are excited to be sharing more information about some amazing new capabilities coming to BPOS in the near future. We want to make sure that you, our customers, have this information early enough to get ready and make the most of the new stuff that’s coming.

New Stuff!

Some of the new capabilities you’ll see in this next update include unified messaging and voice mail with Exchange, enterprise social networking with SharePoint, and Office Web Apps as well as platform-level capabilities such as single sign-on (the #1 most-requested feature!), identity federation, Powershell scripting and much much more. The list below includes some of the features and capabilities that are coming to BPOS. We’ll have more detail on these in the coming months.

With the launch of Exchange, SharePoint and Office 2010 earlier this year, we began the work to update BPOS with the new capabilities that these products deliver. We started with our largest customers in dedicated cloud environments, and many of them are now fully deployed on the 2010 wave of products. Now, we are beginning the work to update the broad base of BPOS customers.

In this next update, we are making huge strides bringing decades of on-premises innovation to the cloud, and we get very close to parity with our server solutions. We expect a preview of these capabilities to be available later this year, with most customers deploying over the course of the following year and beyond, if they so choose.

New Capabilities

Office Web Apps Updates

• Word Web App
• Excel Web App
• PowerPoint Web App
• OneNote Web App

Exchange Online Updates

• Voice mail with Unified Messaging
• Integrated archiving
• Retention policies and legal hold
• Transport rules
• Multi-mailbox search
• Conversation View
• MailTips
• Enhanced Web-based administration
• Role-Based Access Control
• Remote PowerShell
• Free/busy between cloud and on-premises
• Cross-premises management
• Native migration tools

SharePoint Online Updates

• Portal site templates
• Extranet access
• Anonymous Access
• Multi-Lingual UI
• Office 2010 integration
• Tagging, Rating, Tag Cloud
• Activity Feed, Social Networking, Note Board
• Improved Wikis & Blogs
• Content publishing
• Navigation controls
• Cross site-collection search
• Phonetic search
• People search
• Visio Services
• Excel Services
• Sandboxed Solutions
• Improved workflows
• Improved SharePoint Designer 2010
• Access Services
• Better controls of FQDNs

Office Communications Online Updates

• P2P A/V across firewall
• File transfer across firewall
• Presence with pictures
• Federation
• IM with Windows Live

Additional features will be available based on Communications Server “14” as part of ongoing service updates.

Platform Updates

• Free/Busy co-existence
• Single Sign On
• Identity federation
• Redesigned admin interface
• More administration and access control

Read the full article here:
http://blogs.technet.com/b/msonline/archive/2010/07/12/next-generation-bpos.aspx