You can't really address this question until you've defined your terms. For starters, when you say "God," do you mean a semantic construction, or a real live deity with a personality?
Because if you consider God as a concept, it is easy (and valid) to point out that Muslims, Jews, and Christians all worship a god who made heaven and earth, established a covenant with Abraham, and who will one day bring the world to an end.
If, on the other hand, you believe that God the Father (a.k.a. JHWH or Yahweh) really is a spiritual entitity, then it makes a great deal of difference whether the being known to his devotees as "Allah" is actually the same being, or an impostor.
Myself, I do believe that there is a being worshipped by the name "Allah," and who maybe even spun a pack of lies to a fellow by the name of Mohammed once upon a time. That does not, however, make him my God.
Good. Um could you please pass that on to the 250 million Muslims out there. Appreciate it!
I believe essentially the same as you regarding Allah. I believe he is that same very powerful, purely evil, rebellious archangel known in the bible as Satan.
Although his desire to damn the entire human race to eternal separation from God was thwarted by Jesus' death on the cross, he still binds untold millions of human souls in thrall to false religions such as Islam and Hinduism. He is a powerful, highly intelligent, implacable enemy of God and of every living human being. We take him and his mortal followers lightly at our peril.