Yeah, for real. And no, I'm not affiliated in any way. I put in a keyword and let it go for two minutes, went to use the bathroom, came back and there were 2,530 emails waiting for me. A great list-builder for email marketing: http://www.a1own.com/twitter/
This is quite interesting actually if it works. Thanks for the great idea. Guess you will just have to be careful if it is considered spamming.