Some of you might be interested in this interactive map of the migration of faith around the world from PEW (see report). (HT Duncan Green, From Poverty to Power.)
For example, Into Kenya: (click each image for a better picture)
Top destinations for Christians:
Top countries of origin for Christian migrants
Top migrant Muslim countries of origin:
Hindu Migrants
Buddhist Migrants
Jewish Migrants
Migrants of Other Religions
Unaffiliated Migrants
Faith on the Move: The Religious Affiliation of International Migrants (PEW)
March 8, 2012 Report
Confluence: Ben Byerly's Muddy Mix 