IT analysts have predicted the end of the desktop, when laptops would become the computing standard for mobile workers and cube-dwellers alike. But with advancements in converged devices (which combine wireless phone, PDA and applications such as e-mail), it\u2019s not a stretch to imagine the death of the laptop as well.\u201cIn three years, more people are going to be using smart phone devices than laptops in some cases,\u201d says Richard LeVine, an expert in mobile device security with Accenture.In the 1990s, laptops were a status symbol for executives. But CIOs report they are replacing laptops for executives and salespeople with converged devices. While vacationing, Joe Kraus, senior VP and CIO of Intelsat, talks on his Treo 600. Kraus can also send and receive e-mail, and manage his calendar without needing a hardwired connection for a laptop.But the small devices do have limitations. \u201cDid you ever try to type a long message on one of these?!\u201d Kraus writes in an e-mail. Many heavy-duty applications will always require a laptop\u2019s functionality.Laptop makers say they\u2019re not worried. \u201cNotebooks and handhelds are optimized to do different things,\u201d says Carol Hess-Nickels, Hewlett-Packard\u2019s director of business notebook marketing. Meanwhile, technology marches on. To learn about how to manage mobile devices, turn to \u201cMastering Mobile Madness,\u201d on Page 74.