There have been some nice in-depth interviews over the last year and you can hear nearly 3 hours of David answering questions about his work and life in publishing.
The Manifestations Launch at Gleebooks
For posterity's sake, my friends at Seizure have let me put up the recording of the 'In Conversation' I had with crime author and spec-fic enthusiast PM Newton in June 2014. This audio is a uncut and a bit faint in places – but hey, who can afford a soundie for each event?
Interview with Dark Matter Zine
Nalini Hayes grilled the author on his lack of transparency about his personal history before moving on to discuss the emerging themes in the books.
Audio and a video version are available here at Dark Matter Zine.
Here the author answers questions on where he writes and some of why. Here's the link.