Over a fifth of information workers worldwide, about 21 percent, are using at least one Apple product for work, a new Forrester Research poll suggests. The group asked 10,000 workers spread across 17 different countries, the selection criteria being that each person had to use a computer or "smart" device for work at least an hour a day. In detail, 15 percent used one Apple product, while 5 percent used two, and just 1 percent used three.