You guys are correct. The surgery is called a hemispherectomy and it has been done before. Like most of you, I've only heard of it being done on children with severe seizure disorders, but, with much success. I'm not sure an adult would fare as well, but if someone had to have it done, I would hope it would be considered as it might be preferable to living with a brain tumor or some other debilitating condition.
Joey, a child could very well have half their brain removed and do extremely well. As mentioned, the other side of brain takes over function and the child can relearn how to do things as the brain rewires itself. I would definitely consider this given the alternatives of having deblitating and possibly life threatening seizures.
"There comes a time in your life, when you walk away from all the drama and people who create it. You surround yourself with people who make you laugh. Forget the bad, and focus on the good. Love the people who treat you right, pray for the ones who don't. Life is too short to be anything but happy. Falling down is a part of life, getting back up is living."