Having headaches keeping your contact list and calendar events in your mobile phone synchronized with your Gmail and Google Calendar?

Google has announced Google Sync today, which will allow iPhone and Windows Mobile users to synchronize contacts and calendar events with their Google counterparts (Gmail and Google Calendar Events). Owners of phones that support SyncML will also be able to synchronize their contacts with their Gmail account.

And if you’re thinking all you will get is a one-way synchronization, think twice.. According to Google Mobile Blog:

“Sync uses push technology so any changes or additions to your calendar or contacts are reflected on your device in minutes. The connection is always on so you don’t have to manually sync your phone after Sync has been set up.”

Also, any updates made to the data on your phone will automatically be pushed to your Google accounts, and vice-versa. Users can also think of Google Sync as a way to automatically backup their data to protect against lost or stolen mobile devices, allowing them to restore the data as soon as they get a new compatible device.

The video below will give you an overview of the new service:

Here’s the list of mobile devices supported by Google Sync:

  • iPhone
  • Blackberry
  • Nokia S60
  • Nokia standard
  • Sony Ericsson
  • Windows Mobile

Warning: before setting up Google Sync on your mobile phone, make sure you backup your data. As Google Sync uses Microsoft Exchange ActiveSync protocol (press release)  to provide the synchronization, all your contacts and calendar events will be deleted from your phone and replaced by your Gmail and Google Calendar Events.

Enjoy!