I was disappointed there wasn't a punchline about Isildur1 being a bot. Heads up poker is much easier for a computer to play than bigger games. Have the top poker players played against the top bots recently?
I'd be kind of surprised if an elite poker player hasn't already done this.
If not one million, the same order of magnitude. Conservatively $4MM to do it in two years?
There is always a chance that someone has come up with a new approach. For example, the introduction of Monte Carlo search trees http://senseis.xmp.net/?MonteCarlo to computer was hugely successful. An AI on a 9x9 board can now compete at the Dan level. Obviously that's a long way from top-level 19x19 strength but it does show there is always room for a completely new approach.