Sure, I'm sitting next to him as I type this, but Jeff Passan of Yahoo has done the best job explaining the gyroball that I've seen. His article is a great piece of baseball detective work and includes video of both Daisuke Matsuzaka and Joey Niezer.
Finding out that Matsuzaka doesn't throw the gyro is a bit disheartening, but I still think he'd succeed. Maybe he and I could get together and give him the pitch he wants.
To all those new people that might be checking out the Toaster for the first time, hope you like. Be sure to check out the other great blogs here, featuring the work of a team of great writers that write not only here, but places like Sports Illustrated and Baseball Prospectus.