(Business 2.0) – PINT-SIZE PC

Cingular 8125 Meet the Mini Cooper of personal computers: Cingular claims that its slick smartphone will work on almost any GSM network in the world, and with its 200-megahertz processor, plenty of storage, and Wi-Fi, you may even be able to leave your big laptop at home. A slide-out keyboard and full Microsoft Office support should make tapping out e-mail or tweaking the occasional spreadsheet a breeze. $300 (with two-year service plan); www.cingular.com

IRONS AND ELECTRICITY

Soldius Solar Cart Bag This bag can keep you energized on the back nine. Equipped with small solar panels, the Soldius draws power from the sun to charge up your cell phone, MP3 player, or other wireless device. Own an iPod or any phones from Motorola, Nokia, or Sony Ericsson? All the adapters you'll need are included. Sadly, a beer tap is not. $350; www.mysoldius.com

TURN-BY-TURN TUNES

Xact Navi Portable GPS There's nothing like a song and a decent map to put you (and your rental car) back on track. Like any good GPS unit, the Navi offers maps of most North American roadways, along with turn-by-turn voice directions. But it also comes with a digital music player, 4GB of photo or MP3 storage, and an adapter for Sirius satellite-radio receivers. An FM transmitter lets you stream your favorite tunes throughout the car. $700; www.xactcommunication.com

BEAM YOU UP, SCOTTY

I-O Display Systems i-Theater Forget squinting at second-rate movies on crummy airplane screens. i-Theater's sci-fi-style video glasses contain high-res LCDs that put a big screen right in front of your eyes--and your eyes only. Weighing just 3.5 ounces, the system attaches to most portable DVD players or video iPods to deliver an experience that's said to be like watching a 50-inch television. $500; www.i-glassesstore.com