Enterprises will deploy significantly more applications to pervasive devices during the next three to four years. By 2004/05, we expect Pocket PC (Windows CE-based) to have 50% share of the enterprise personal digital assistant (PDA) market, with Palm at 35%-40% and Linux-based devices at 10%-15% (primarily specialized devices for Java applications, single-purpose applications, etc.). Within four to five years, we expect improved smart phones (e.g., MSFT Stinger) and improved network rollouts (e.g., 2.5G/3G) to drive enterprise deployment of mission-critical applications to wireless devices (both smart phone-based and wireless modems attached to PDAs), with 15%-20% of enterprise mobile workers using these devices.