I think that's the right way to describe what I'm looking for… I need a few more examples of identity systems that change configuration depending on their usage/various other parameters.

One example is the recent Nordkyn identity:
http://www.underconsideration.com/brandnew/archives/where_the_cold_wind_...

Others:
Casa da Música
City of Melbourne

Close but not quite right:
SECCA
NYC
AOL
Anyone have any other examples?