Smartphone Identity

Full Title

What is the best way to construct systems that give users the ability to carry Identity information in the mobile Digital communications devices?

Context

"Around the world cellular connectivity is more ubiquitous than clean running water. " is how Phil Vachon starts his discussion of "The Identity in Everyone's Pocket" an article in the Communications of the ACM. This requires development of technology solutions for the creation, storage and verification of digital credentials in a manner that respects the user's needs and desires. This page is a summary of that article as it impacts developers of applications running in those three environments.