Yes, I remember there was a fair bit of discussion around that...

Yes, I remember there was a fair bit of discussion around that and numerous other uses for the tech. Hokey came up with potential agricultural applications. Some people thought other applications would be more important than blocklaying. I was disappointed that as the years went by nothing eventuated, and then they announced that they are working on roof tile laying and the 110 shuttle delivery system is capable of doing that, and is also able to carry extra large blocks too heavy for humans to handle. Today's Hadrians will be tomorrow's vintage machines. The future machines will be much more capable and varied. At the moment you can have any colour so long as it's white.