TECH-KNOW: With Palm, PocketPC, and now Linux-powered organizers flooding the market, add-on gadgets and applications are proliferating. These three will pump up your PDA — or the PDA of that hard-to-buy-for person onWith Palm, PocketPC, and now Linux-powered organizers flooding the market, add-on gadgets and applications are proliferating. These three will pump up your PDA — or the PDA of that hard-to-buy-for person on your gift list. your gift list.

PRESENTER-TO-GO, $199
PROS: Turns PowerPoint files, HTML docs, and more into slide presentations; display quality is superior. Works with Palm OS or PocketPC devices.
CONS: Hogs Palm memory and strains PocketPC battery life; doesn’t support audio. BOTTOM LINE: An easy to use, attractive alternative to laptop-based presentations. The wireless remote lets you work the room during showtime.
MORE INFO:www.margi.com
POCKETOP PORTABLE KEYBOARD, $99
PROS: Works on any hand-held equipped with an Infrared port. And talk about easy storage. This baby weighs 4.2 ounces; folded, it’s thinner than a deck of cards.
CONS: Lining up the PDA’s Infrared port with the keyboard can be tedious; two rows of keys are half-sized, so strike carefully.
BOTTOM LINE: A device-agnostic solution for old PalmPilots or the newest< br/>Sony Cliés.
MORE INFO: www.pocketop.net
SIPIX PORTABLE POCKET PRINTER A6, $150
PROS: Prints from Palm OS or PocketPC devices using Infrared or serial cable; cool Screen Print function lets you capture screen shots to print.
CONS: At about two pages per minute, the A6 is not the fastest gun in the West, and it’s not formatted to print e-mail or spreadsheets.
BOTTOM LINE: Mobile pros with a need to print anywhere should take a look.
MORE INFO:www.sipix.com