Shipments of Windows Mobile PDAs grew 64 percent in the first quarter of 2007, and this strong growth helped propel worldwide PDA shipments to 5.1 million units, a 39.7 percent increase from the first quarter of 2006, according to Gartner, Inc.

“Microsoft Windows Mobile licensees accounted for nearly 3.2 million PDA shipments in the first quarter of 2007, or more than 60 percent of all PDA shipments in the quarter,” said Todd Kort, principal research analyst in Gartner's Client Computing group. “This strong growth was surprising because Windows Mobile 6 will launch in the second quarter, accompanied by the launch of many new and improved models. Normally, consumers and businesses have constrained their purchases when upgrades are imminent.”