Yes, because you've really thought of something unique and original right? Why didn't every candidate think about videoing themselves arguing with......themselves and put it on youtube. Dude, if no one shows up at a debate there is no debate. You can't simply announce a debate, have no one show up, and video tape it. Debates are actual events, sponsored by news/entertain outfits. They only become debates by virtue of candidates showing up to talk.
I am supporting Newt by the way. I wish your idea would work, but it wouldn't. Nor do I believe for a moment there would ever be ANY Lincoln/Douglas style debates against Obama if Newt was the nominee. There would be the same 3 or so debates there are always are. Newt will ask for more debates since it is his strong suit, Obama will decline, Newt will hit him a few times with it until the media stops covering anything he says about it, and the issue will die.