I wasn't sure at first if it was going to be obvious to me what the secret was, and I thought I wasn't going to understand what they were saying. And then when it hit the 50 second mark, I did a double-take. And from that point onward, I knew exactly what was going to happen next, and I knew exactly what the text was saying.
the link in the video description has some interesting bonus info, though, i recommend giving it a read
Oh come on man, don't give it away so soon. I can understand the strong desire to tell the world after you've put a lot of work into something, but that really takes the fun out of it a lot quicker. It's a lot more fun to leave people in suspense, and let the whole thing slowly unravel. Watch as some people completely buy into it, some of them are unsure, and some of them immediately see right through it and figure out how you did it. The best prank is the one where someone else gets the credit. Then again, a lot of people are just going to watch the video without reading the description, even when you tell them to, so I guess it will still have an amusing effect. Still though, I was going to hold off on posting in this thread for a little while just to help keep people guessing, until I saw just how eager you were to come forward.