I am writing this sentence in a taxi en route to LaGuardia airport.

I am writing this sentence a week later, on my laptop, in the office.

What's going on here? I have been testing out Sprint's PCS Connection Card, a high-speed wireless connection to the Internet . And I typed that first sentence on a laptop in a cab on my way to Boston. I was even able to keep working while waiting at the gate for the plane and then once inside (and before we left the gate), I was able to stay online until the cabin doors were closed. I downloaded several documents from the Web, allowing me to get some important work done. If not for the card, I would have been reading a magazine, waiting impatiently to get to a place I could go online.

That's what the Sprint card does, it allows almost any place to be a place I can go online. And it's very liberating.

The product is basically a credit card-sized card that you slip into the slot of your laptop and then it acts almost like a cellphone, connecting you to the Internet through Sprint's network. Naturally, you are restricted to wherever Sprint has coverage, but in a couple of weeks of testing in two cities, I rarely had problems getting access. In fact, I had few of the usual problems cellphone users do of "dropped calls." The card, which is made by Novatel Wireless, allows you to "dialup" at higher speeds that a regular modem and much faster than any data connection you might have tried with a cellphone. Sprint says its new "3G" network supports data transmission speeds averaging 50 to 70 kbps, with peak speeds of 144 kbps.

Now that I have told you I liked how it works, the next question is about the pricing. The card itself costs $249 (until Nov. 3, Sprint is offering $50 off for a price of $199). There are various data usage plans, including the : $99 "all-you-can-eat" plan (until 11/3 it's $50 off the first month for a price of $49). It is definitely not aimed at regular consumers. However, if your business will pay for it and you are on the road a lot, it is definitely worth it.

For more on this, visit the Sprint PCS Vision site. The card is also available nationwide in Sprint stores.

I will do a separate piece in the weeks ahead about what is known as WiFi technology, which allows you to set up small wireless networks in homes and offices.

Write to techguru@sree.net and let me know your thoughts.

To join the LOW-volume "Sree Tips" e-mail mailing list, send your name and e-mail address to sreetips-subscribe@yahoogroups.com. No more than once a month, you will receive an e-mail message with tips and tricks about new, useful and fun Web sites.