they use cell phones for business (atleast the "new orders") and are allowed to have trucks for business purposes, yet are not allowed to hav it in their name. I drove a truck owned by a couple of Amish brothers, and the had it in the nabour's name so thay could own it... I was part of a stricter group, the Swartzentrubers though.
oh, and they could not take the cell in the house