The South Wales Amiga Users Group interviewed Ben Hermans, a managing partner of Hyperion and have allowed me to repost their interview here.
AmigaRulez has interviewed Thomas Frieden, a leading developer of AmigaOS4. I have reposted it here thanks to Johan "Graak" Forsberg.
Juha Niemimaki has interviewed Ben Hermans aswell regarding a little more about Hyperion's history and some more information regarding OS4. This interview is posted here.