A piece of news that somehow didn't get a lot of attention is that the Google Sync utility for Blackberry now does contacts too. This is a huge leap forward for Google Apps -- users now have the ability to do true two-way syncing with their Blackberry for mail, calendar appointments, and contacts.
This means that now you don't have to worry about maintaining two contact lists -- something that you've never previously had to worry about with Microsoft Exchange. Each time Google adds a feature that strikes a chord with business users, they are scoring points that could one day turn the tables on Microsoft's dominance in the enterprise.
On a related note, if your business still uses Microsoft Exchange, I'd be interested to know what is stopping you from switching to Google Apps. My biggest problem is the lack of technical support and the feeling of helplessness when something does go wrong, or some user accounts stop working. Let's hear what you think in the TalkBack!