That was methen I was asked (forgive me, but for the life of me I cannot remember who asked it, and it's late, so I can't remember too well) why did God curse the serpent?
As for your explanation, I don't agree. I don't believe that the Lord would curse an innocent creature like that.
Here is another question. To me at least, it would seem quite strange to see a snake talking... Yet Eve gave no thought to it. This to me points out that man and animals once had a connection that the majority of us no longer share, what is everyones' thoughts on that?