This has been a long waited connector, which was only available through MCS and partners engagements.

This FIM connector for Office 365 is intended to be used when DirSync (or the so called Windows Azure Active Directory Sync Tool) is not possible such in multi AD forests context or non Active Directory scenarios.

You can now try this Release Candidate, just go to http://connect.microsoft.com/directory and apply to ForeFront Identity Manager 2010/FIM Synchronization Service Connectors Pre-release beta program.