Mr. AP Singh, DDG, UDAI in his write up " A road less travelled" published on I-Government pitches for Aadhaar as an enabling number to empower common man in India.
He talks of soft infrastructure required to enable the common man with three ingredients. They are - a mobile phone, an electronic bank account and a unique identity number. The mobile phone would connect the residents with the world. The bank account number would enable them to pay electronically for goods and services. The Unique Identity (UID) or Aadhaar will make it possible for residents to identify themselves, in person or online, definitively.
He calls them taking shape and not mere fantasies. Here is the write up which is not reproduced here in full to respect the copyright laws.