Iona also became the burial site for the kings of Dalriada and their successors, the early kings of Scotland.
In 1938 George MacLeod founded the Iona Community, a non-denominational (?) religious community emphasising mission and social action. This community is a leading force in the present Celtic Christianity revival.
There is also a software company called IONA Technologies PLC (http://www.iona.com/). The company headquarters are in Dublin, Ireland.
Iona is also the name of a celtic rock band from Scotland.
IONA is an acronym for Islands of the North Atlantic, an alternative term for the British Isles.
Iona is also the name of a college located in New Rochelle, NY. www.iona.edu