[quote] Then he's not truly omnipotent, as omnipotence is defined as being, literally, "all powerful". If he's not all powerful, why call him God? Or, better yet, why worship him?

And if he's not all powerful, how did he create everything? How can he see the future? Make predetermined things?

Or, do you have a different interpretation of God?[/quote]

All those powers you listed exist, and He has. No, He is not truly omnipotent. 

As to why worship him, He offers me the best chance at happiness. That is all. So I am duly appreciative.