Mobile technology was supposed to set us free from the tyranny of the 9-to-5, allowing workers to escape the office and plug in wherever they happened to be, and work when inspiration struck. Instead, studies show, improvements in technology have blurred the boundaries between work-time and personal-time, and changed managers' expectations of the managed. In short, many bosses and employers now expect workers to check their email at night, on the weekends, even on vacation. The result? Workers are getting mad, and getting less done.