David Kettlewell died, of heart disease, in April 2011, and all contact details are being deleted. His websites are being maintained as a memorial to his ideas, and his influence on the people he met and taught. Throughout the site, his words have been left in the present tense, as he wrote them. For any questions, please contact pkettlewell@skynet.be

Since much of his appreciation of, and insight into, the Apple Mac series of individual computers dates from the 1990s and has not been updated since his death, this work has all been superseded by events, and the pages have been taken off the Internet.