I was just flying and heard "Flight Level Three Hundred". I knew exactly what it meant due to this thread...I had never remembered hearing a "hundred" before. The other pilot had flown extensively in Europe and said he had heard the "hundred" thing a lot.
We used to be NADP2 in the US, and 1 outside it.
But, now we are NADP2 all the time, unless specifically instructed to fly NADP1. NADP 2 is 1000/Flaps 5, and NADP1 is 3000/1500 for us, unless something else specified...I think Stansted is NADP 1, except 5000/1500???