The problem with discussing religion (or God) as something which is true or not, is that this places it within a universal context of truth. In fact, for many (especially the more mystically inclined), God (or their religion) is the universal context within which factual truth is one subject. The debate on the existence of God attempts to make God not context but subject within the context Truth (or Fact). Such is to vastly misinterpret not only the role and nature of religion, but also the nature of human epistemology.
Because we have the words 'God' and 'exist' which we use meaningfully everyday, we think we can combine them in a way which meaningfully maps onto reality and can be judged either true or false. But this forgets that all thought (and language as an expression of thought) comes from the context of an individual mind in which God either is or is not part of the context which defines the qualitative nature of all other, contingent, truth. Those attempting to prove God's existence regardless of individual consciousness seem to be on a false path from the start. They seem to pose a question such as "How does the world look when everyone is blind?" Those attempting to place a conditional on the context of God (i.e. agnostics) so they don't affirm the conclusion within their axioms are likewise doomed to failure. God is simply not an objective fact. It is intimately bound up with subjectivity itself - they are inseparable. One is condition of the other. For the religious (the monotheist) this should be clear: scripture never talks of God in separation from man. God and man exist solely in relation to each other, for each other.