Outlook<->Android Sync versions

Free

HTC Sync™ helps you synchronize Outlook contacts and calendar.

Backup and Restore your Email, Extract Email Addresses with Outlook Email Saver

Free

Allows you to sync your Microsoft Outlook Tasks to SymTasks on Android device.

Free

IE Sync is an easy to use sync service for your mobile devices.

Synchronize outlook between two PCs, plus backup outlook to USB device as well.