In the Arab world, Muslims and Christians alike pray to Allah. Not because of some very ambitious interfaith effort—simply because “Allah” is the Arabic equivalent of “God,” in the singular, monotheistic sense.
Elsewhere, the idea can be fairly shocking. Recently, the Malaysian government threatened to revoke a small Catholic newspaper’s publishing license over its use of the word “Allah” in reference to the Christian god, Asia Sentinel reports. Amid pressure from the public, the government eventually backed down.
(Thanks, Christianity Today.)