I met Kevin at a conference in Manchester where he cloned my HID access card and made an amazing demo of how easily this can get a company's workstations compromised with keyloggers. It was like watching a magician - he was a very skilled, funny, intelligent man with a wealth of knowledge. He gave me his business card (which is also a lock-picking kit) and I will treasure it.
Thanks for all you taught us Kevin, and thanks for being a beacon of curiosity and exploration.