Salesforce.com's Chatter, Mobile Knowledge Management and Collaboration

I spent time at the CIO Council last week with Kris Muller in product marketing with Salesforce.com.  He was at the CIO conference speaking about Salesforce.com's new solution called Chatter.  Here is the official description of Chatter from Salesforce.com:

Chatter is a brand-new way to collaborate with people at work. Where the status of important projects and deals are automatically pushed to you — so you're always in the loop.

• Share securely and collaborate instantly
• Stay on top of what matters most
• Gain insight and make smarter decisions

I am a big fan of mobile knowledge management and collaboration tools and this fits right in.  It is a secure way for all members of a sales team (account reps, pre-sales, product marketing, product management, sales management, etc.) to closely follow developments on a specific account.  The team can quickly and securely share information, deal documents, collateral and discussions.