A Plan, or a Promise?

At http://tinyurl.com/7dc5zav I read an entry by Justin which I found thought-catching. (I've paraphrased/cleaned it a bit.)

What if (and it is a hypothetical WHAT IF)… there is NO plan, just "God with us" (that’s Biblical). What if we come upon situations and God says, "Make a choice; you and I will explore that path together." This is not talking about “right” and “wrong” actions, but rather about paths in our lives. For instance: Is there ONLY one person for me to marry that God has planned from the beginning, OR, is there more than one person that I may come upon in my life that I am more compatible with than others? Or, what career should I take in life? Perhaps that’s not all planned out either, but together with God we are supposed to make those tough choices, reassured that God is there with us THROUGH this journey. NOT saying I completely adhere to this theology (and as crazy as it sounds, this is real theology out there, not something I came up with), but it is a viable question to ask.