Yeah. It's my standard answer when somebody asks what I'd consider to be proof of God's existence. (It's actually an interesting philosophical question, *could* God specify the value of pi if he wanted to? It can be derived directly from the integers, so maybe not. He might have to use more "arbitrary" values, like the ratio of proton and electron masses. But I digress.) You're right though; if God is hiding his presence from us for some reason, we'll find out when he wants us to and not before.
"I am a leaf on the wind" Wash bump.
Intelligent design becomes more interesting if approached philosophically. It is an interesting question, I'm willing to admit. I just don't think it's an appropriate one for science to attempt to answer. If supporters of creationism/intelligent design spend as much energy and creativity towards getting religious studies and philosophy classes added to school curricula, I don't think there would be any objections. In fact, I think people in science and engineering disciplines would be lining up beside them to support the measures. If there's anything students need is more classes with reading, writing, and reasoning components.