Palm retained leading position The weak economy continues to dampen demand for PDAs (personal digital assistants), according to data published Tuesday by Gartner.PDA shipments in the first quarter of 2003 were 2.8 million units, down 11.1 percent from 3.2 million units in the same period last year, Gartner said in a statement.Palm retained its leading position in the worldwide ranking, accounting for 32.8 percent of global PDA shipments. Hewlett-Packard (HP) held onto its No. 2 spot with a 16 percent market share, followed by Sony with a market share of 13.3 percent. Toshiba and Sony showed the strongest growth with growth rates of 276 percent and 60 percent respectively.Although Dell Computer forced HP to follow a more aggressive pricing strategy, the PDA newcomer has yet to erode HP’s position seriously, Gartner analyst Todd Kort said in the statement.Dell shipped 139,500 units in the first quarter, its first operating quarter, representing a market share of 4.9 percent. Although Palm continued to lead the U.S. PDA market with a 38.2 market share, the company was the only top-tier vendor to post negative growth in the first quarter, down 22.1 percent year-on-year, according to Gartner.With 16.6 percent of the U.S. market, Sony moved up to the No. 2 spot, pushing HP into the third position with 13.5 percent.First-quarter shipments of PDAs running the Palm operating system accounted for 49 percent of the worldwide market, despite a decline of nearly 400,000 units. The Microsoft Windows CE operator system achieved a 36 percent market share, with shipments up 330,000 in the first quarter over the same period the year before. Technology IndustrySmall and Medium Business