(FORTUNE Magazine) – We can't double your frequent flier miles, but here are some new adaptations of existing technology that either take a bit of the pain out of business travel or help you to stay in touch: -- Travelers touching down at the new Pittsburgh International Airport have a place where they can trade their stocks. PNC Financial, a bank and brokerage firm, has a center just off the D concourse where you can check prices of shares quoted on the NYSE, Amex, and Nasdaq exchanges, along with your mutual fund investments in Vanguard and Fidelity funds. Quotes are free and available 24 hours a day. You help yourself to a PNC computer terminal. To trade, you must have a PNC account -- but you can open one by phone on the spot.

-- Singapore Airlines has started a program that lets you send faxes while aboard its Singapore-San Francisco flights. Satellite technology still has a few kinks, so look for fax reception to come later next year.

-- If you've seen the movie on the New York-Tokyo flight but hate cabin noise, Japan Airlines offers first- and business-class passengers sound-neutralizing headphones made by Sony. White noise cancels the competition. Pilot announcements override the system.

-- Road fax facts: YCO Transportation in Los Angeles rents out limos with three phone lines: one for you, one for the driver, and one for the fax machine. While the firm is unlisted -- this is L.A.! -- a good concierge has the number.

-- The Pinnacle Suite program at the Rihga Royal Hotel in New York City offers fax machines, cellular phones -- and call-forwarding that trips your room phone to your cellular if you go out. Guests get business cards listing their fax and phone numbers.