"Personal Digital Assistants (PDA's) are nothing new - they have been around in one form or another for several years now from a handful of companies. What is relatively recent however, is the adoption of full colour LCD screens on these little wonders of mobile organization.
The evolution from black and white LCD displays has also opened the door for a host of peripherals which take advantage of the new colour capabilities to drastically increase the usefulness of the device. These add-on peripherals can be inserted into the handspring visor through its springboard expansion port - transforming the simple PDA into anything from an MP3 player to mini photo studio to GPS receiver."
FULL STORY @ PCSTATS (http://www.pcstats.com/articleview.cfm?articleID=790)