For Vodafone 845 (2.1), huawei 8800 (2.2) devices, textVisiblePassword seems to prevent word prediction.
vendorId.setInputType(android.text.InputType.TYPE_CLASS_TEXT | android.text.InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
or
android:inputType="textVisiblePassword"
[Edit] this answer is quite old and I don’t have the environment anymore to test to get up-to-date info for comments here, sorry.