Estate planning: execution of electronic wills (boyesturner.com)
See also:
Robot Wills, Kevin Kennedy (burges-salmon.com)
www.burges-salmon.com/news-and-insight/legal-updates/private-client/are-electronic-wills-the-future
blog.burges-salmon.com/post/102j3cv/electronic-wills-a-sceptical-view