Using the same accelerometers, a new calling function will dial whoever's contact details you have displayed when you raise the phone to your ear.

ENGADGET: Samsung Galaxy S III preview: hands-on with the next Android superphone (video)

The contacts list lets you dial without clicking into a contact's entry.

ENGADGET: Gear Eye: Sony Ericsson's K700i

Better yet, you can dial phone numbers directly without having to register a username or add friends to a contact list!

ENGADGET: Viber VoIP iPhone app: 3G calling, no registration, and totally free