I tried splitting the link apart and putting it inside quotes but it still shows as a link. Sorry! It was on carm.org and the article's sub-url was "/god-islam-christianity-same"
Yes, one big problem Christians have translating the Bible, or New Testament, into Arabic is that using "Allah" for God makes far too many readers think they are one and the same. The theological differences are significant for a variety of reasons, including the Trinity, Sonship and Deity of Jesus, what salvation entails, end-time prophecies, etc.
And yes, many Arabic speakers use "Allah" for God even if they are speaking of other gods where they know there is a difference between the two belief systems under discussion. I wish I could remember the translation (or more information) on using another Arabic word for 'god' instead of Allah. Will try to find it and post if possible.