Another interesting fact is that the last bit of Pi is 1. It's not difficult to see why when you stop and think about it, but if you tell that fact without the usual mathematical disclaimers (e.g. - Pi doesn't have a last digit in any base), it tends to put people into a funny "how the hell did you figure that out" state.
The clincher is that rightmost 0's after a decimal point are insignificant and can be discarded similarly to leftmost 0's before a decimal point. 00045.26030 = 45.2603 - the extra 0's are simply noise. In binary, the only non-0 digit is 1. This means that, if Pi does in fact terminate, its binary representation must terminate in a 1 - any 0's to the right of the last 1 carry no value.
Now, that's a pretty big "if", but this isn't meant to be serious mathematics. It's just an interesting consequence of binary representation and the assumption that Pi might terminate, and is enough to make people do a bit of a double take when you phrase it along the lines of "the last bit of Pi [if it has one] is a 1".
