"I already had my own pen developed in its current form when I married Miles, for personal use," Linya said. "Most of the software in the others is the same, with a few features most people won't want or need removed. All I had to do was make sure the design still worked with more scalable materials, and find a manufacturer - Tsipis has been invaluable - and teach them to make the pens, and come up with a tutorial and make particularly sure that the network and data formats popular on Barrayar were best supported."