Intellisync announced today that it has teamed up with T-Mobile USA to provide “over-the-air” synchronization of Microsoft Outlook to Sidekick (both the original and Sidekick II) owners. Users can sync calendars, contacts and tasks.

The software is available from the My T-Mobile page after logging in at T-Mobile.com.

One of the big knocks of the Sidekick and the Sidekick II was not having the ability to sync.