Two new Palms make debut.(3Com Palm IIIx and Palm V hand-held PCs)(Product Announcement)

Millions of palmpilot organizers and loyalists will be rewarded this week when 3Com announces two additional product lines to the series, the Palm IIIx and Palm V.

Although a color LCD is still not in the cards, the display on both the new Palm IIIx and V will be given higher contrast with a lighter background rather than the current dark-green hue. Business users have been waiting for improved readability.

"Color is not too important, but a better display is," said Phil Pucci, a systems engineer at Geolinks, in Milwaukee.

Software differences between the two new units are minimal. The Palm V device adds a contrast-control button and offers a …