Steve Jobs announced today that the iPhone will have full ActiveSync support allowing it work with Microsoft Exchange. ActiveSync as well as the feature packed SDK also announced today will be available as a free update in June. Full coverage at Engadget.

Yesterday, Google released Calendar Sync which “allows you to sync events between Google Calendar and Microsoft Outlook Calendar. You’ll be able to determine the direction of information flow, as well as the sync frequency.”

Today, Google released its Contacts Data API which “allows client applications to view and update Contacts content in the form of Google Data API feeds.”

Additional Coverage:
GigaOM – iPhone Ready to Rumble With Blackberry
David Szpunar – Apple’s iPhone Getting Exchange ActiveSync! And Google does Outlook Sync, too.
Google Code – 3. 2. 1. Contact. The API has landed
Google Enterprise – Introducing Google Calendar Sync