So sad to hear about dear Terry. I worked with Terry a bit at Suncorp Group where he ran the R&D lab, and during this time he came along to linux.conf.au in Brisbane in 2011 which I was volunteering at. I believe this is where he caught the open source community bug!
Terry was an amazing guy, a real giver, he always had time for you and would help anyone out if they showed a bit of initial initiative. I also really liked his plain speaking and direct approach to things, he recently he helped a friend of mine he didn't even know out with a charity project and wasn't scared to call out some poor design and get them on a better track. He was an inspiration to me and I know that his atitude to life lives on in many others.