All the kerfuffle over that poor professor, it really is remarkable that intelligent people can find it so hard to understand.
Yes. Yahweh, Allah and the Father of the Lord Jesus Christ are all intending to refer to the same object - the creator and soveriegn of the Universe, the one true God.
Nick Norelli (PBUH) makes the usual mistake of thinking that just because someone is wrong about an aspect of the object they are therefore referring to a different object altogether.
Here's the thing, saying we mean the same God is not the same as saying that we are all correct in our beliefs about that one God just as the Flat Earth Society live on the same Earth that we all do they are just wrong on the subject of its basic shape. And thank God for that else we'd all be unable to pray to or talk about the Most High on account of the smallest imperfections in our theology.
Put this another way, some people think I am a really cool guy, other think I'm a complete moron. Whether they are right or wrong (or the answer is a bit of both) they still refer to the same chap when they talk about me, even if they are fundamentally wrong about my character.