Not really.. I think the following combinations have been deemed socially acceptable:
Islander guy/girl + african guy/girl
Islander guy + Asian girl (usually darker, really fashionable asians.. filipinas, thai etc)
Lebo guy + anglo girl (coughusuallyahocoughandhe'susuallyadickcough)
Spanish girl/guy + islander girl/guy
Spanish girl + wog guy
Spanish girl/guy + african girl/guy
anglo girl/guy + asian girl/guy
Unacceptable, whatsoever:
Arab girl + Aussie guy
Arab girl + Asian guy
African girl + anglo guy
African girl/guy + Asian girl/guy (filipino's are an exception)
Uacceptable but gaining growing acceptability:
Arab + African
Arab + Islander
Spanish guy + Arab girl
Islander + Anglo
Anglo + African
I think about this too much