Hello there! What an interesting question you pose, I have been pondering it myself lately.
In response to the original post, I for one do believe in the omnipotence and omnipresence of God in the traditional sense, however I see it through a different... perspective. That is, if one is to accept that God exists in all time and all space while avoiding a sort of panentheism (like Spinoza would suggest), it is necessary to accept that God exists both within and beyond the very concepts/measures of time and space. This leads me to say that God does exist and does not exist at the same time, since His being is both intimately imminent and infinitely transcendant.
How this relates to the universe(s) and the human condition is a little more complicated. I believe that the universe was founded upon and exists upon two principles; chaotic change and fundamental cause. That is, all the processes of our universe, the cycles of galactic/solar/planetary formation, evolution, constant movement, etc are all the result of an original action which, being beyond existence in the real sense, somehow had the foreknowledge or "design" to know that the original cause would result in such an environment as we know today.
At first this theory seems hard to accept, since it falls into the traditional duality of change versus constancy and how they are incompatible in the physical sense (Aristotle's unmoved mover), therefore insufficent to describe the origin of the universe. However, in good Taoist mindset, I would go on to say that ultimately, to a being beyond time and space, there is no difference between change and constancy; they are perceived on a whole new level permeating every possible thread and expression of reality. Hence, to be omniscient and omnipresent must be redefined as the non existence of both time (being cognitive of all events regardless of order) and space (being part of everything).
Finally, this relates to the story of Genesis in that the tree of knowledge of good and evil (which I believe is a whole other branch, forgive the pun, of philosophy, requiring a whole new topic) was an essential part of the universe's evolution, with humanity being meant to "eat of its fruit," there being no other possible outcome as a result of the "cause's changes." The real point of contention in the theist/atheist debacle is whether the anthropological interpretation presented by Christians holds ground; As an Orthodox Christian I believe the fall of man was the result of man's action, that this led to the fall of creation (again, requiring a whole new topic to discuss in full) and that the Christ, being the Logos, the "cause," is the very "jump start" of the universe's existence as relative to humanity's role in it.
Well, I hope that this isn't too disjointed; I hope that this helps establish a variant Christian position
In peace,
-Justin