For a few months now, Air France has been testing in-flight data and cell-phone service on one of its planes. (I flew on one of the cell-phones-allowed flights and wrote about it in my Well-Mannered Traveler column on MSNBC.com.)

Now comes word that passengers on at least one TAP Portugal plane can send and receive e-mail and make flying phone calls as well. The airline has equipped a single Airbus A319 aircraft with the Mobile OnAir service and will test that service for six months.

On the test plane - and perhaps eventually on all TAP Portugal flights across Europe - passengers can use BlackBerry-type devices and mobile phones to send and receive emails and text messages, and to make and receive voice calls.