PDA shipments will grow 6.3% in 2006 to 15.9 mln units and 6.4% in 2007 to 16.9 mln units. Cellular PDA shipments will increase about 28% to 8.8 mln units, while noncellular PDA shipments will decline 12% to about 7.2 mln units in 2006, Gartner says.