Every day it seems as if there is one less thing mobile devices can’t do. Personal applications now range from restaurant guides to movie players to virtual fortune cookies. But professional applications that enhance productivity and efficiency are quickly catching up as mobile devices continue to prove their worth to businesses across the board. When it comes to security installers or service technicians in the field, some companies have jumped on cutting-edge mobile technology while others are still keeping the gloves on as issues such as data security and cost make that edge just too sharp.