Freeform tissue engineering doesn't seem like it's leading anywhere profound?

Imagine using autologous xenobots (homobots?) as a drug delivery mechanism for humans.

> I wonder if they could impose arbitrary logic, and implement something like Conway's game of life? Seems like you'd need a predictable algorithmic framework in order to achieve anything useful with it.

Exactly. When I look at these xenobots I see a prototype for programmable matter. Imagine using these kinds of things to run programs where the output of the programs isn't shifting bits in a CPU but shifting molecules in a substrate.

You could use these for autonomous manufacturing from the microscale and up.