NEW YORK — Research in Motion Ltd., maker of the BlackBerry, is taking on Apple Inc. with a touch-screen phone that puts a new twist on the technology.

RIM is known for its e-mail-oriented phones with large keypads. With the new model announced last week, the Storm, RIM is for the first time giving up the physical keypad in favor of a large screen, just like the one on Apple's iPhone.

But RIM has listened to users who find the iPhone's glass screen awkward to type on because its virtual buttons provide no tactile feedback. The Storm's whole screen is backed by springs, and when pressed, it gives under the finger.

The long-rumored Storm will be available from Verizon Wireless in the U.S. and from Vodafone Group PLC overseas before the holidays, the companies said. No price has been disclosed yet.

In an unusual twist, the phone will work both on Verizon Wireless' network and on Vodafone's, even though they use incompatible technologies. Like a few other Verizon Wireless handsets before it, the Storm will be equipped with radios to handle both networks, making international roaming a possibility. The iPhone, carried by AT&T Inc. in the U.S., can already roam internationally.

The addition of a touch-screen phone to the BlackBerry lineup, the mainstay of e-mail-addicted executives and managers, is a testament to the effect of the iPhone. RIM's share of the U.S. smart-phone market has stayed above 50 percent, but the iPhone has clearly helped expand that market.

Over the past year, technology buyers at large corporations have found their employees demanding a touch-screen phone, said Mike Lanman, chief marketing officer of Verizon Wireless.