Five years ago I met with some people from google and some then colleagues of mine. I was trying to recruit developers to make then, what today is the Atrix.
Specifically - I had spec'd up a dist of linux that would work the way the Atrix claims to today... it was based on a kiosk computing design white paper I wrote in 2002...
I couldn't convince anyone at the time with my main premise which was that going forward 100% of our digital identity would be carried in the phone.
The problem that the current implementations of such systems have is that they are being driving by the wrong organizations - Carriers and Handset Manufacturers... the parties with the least innovation incentive. The ONLY incentive ANY of these companies have is incremental profit.