By accident, actually. We were just at GTEC yesterday. At last year's GTEC, we met somebody who explained the process to us. In practice, I had received an e-mail a month or two earlier, but it was one of 500 e-mails from someone I didn't know, and it just went in the junk folder, I'm afraid.
When we were at the trade show, my colleague Keith Jackson went to the booth, saw somebody, came back, and said we should do this. So to a degree, it's by chance.