Require a module created for Magento to allow the use of the Janrain Engage Engine - supporting the Pro version:
Login, account creation/mapping, sharing activities via the social networks.
There are plugins already created for joomla, wordpress, drupal etc - starting point to adapt for magento
Hi, i'm skilled web developer with strong knowledge of Magento (and PHP&MySQL) with almost 10 years of practice. I will gladly develop this interesting module for you. Please feel free to ask me any question via PMB. Thank you.