there are other races than india at sabah/sarawak, where u can see more mix in this marriage mixing, without converting, especially among the chinese with iban/kadazan/bidayuh/dusun etc etc etc .....
many great mixture been produced. even i am one of the mixture, with a little bit imbalance feeling, where most strangers always speak malay when saw me, padahal i am chinese(75%) n 25% Iban(one of my grandmother is iban). this issue is actually common(anywhere in malaysia i believe) where u dont know what language u should speak to the person, cos too many mixture....