Queste sembrano essere le nuove feature:
Feature: Improved USB support
Feature: View Exchange Server Synchronization status on your PC
Feature: Synchronization of pictures in Contacts on your mobile device with Outlook
Feature: Easier to identify friendly device names
Feature: Synchronization over a Bluetooth connection with your PC
Feature: Integration with Windows Media Player 10
Feature: Enhanced user interface and enhanced new partnership wizard
Feature: Synchronize Internet Explorer Mobile favorites to a Windows Mobile-based Smartphone
Feature: More robust synchronization with Outlook
Feature: Configure synchronization settings prior to first synchronization, including custom
Source: Activesync 4.1 (build4807)