THE BLACKBERRY MAY HAVE the lion's share of the mobile device market, but the iPhone is making inroads, especially now that it's launching more applications specifically designed for busy executives.

"Blackberry has always been the choice of the corporate user," says Michael Gartenberg, vice president of mobile strategy at Jupitermedia Corp., the Darien, Conn.based provider of images, news, and online content delivered to all kinds of mobile devices. "But going forward, it'll come down to what's the best choice for a user."

"I'm addicted to my Blackberry," admits David Woodward, CEO of Laramar Communities, a Greenwood Village, Colo.-based apartment owner and developer. "It allows me to be productive during short down times like standing in line or waiting for a meeting to start. One of the newer apps that I use is the built-in GPS—it really comes in handy."

Spencer Stuart Jr., senior managing director of Dallas-based Legacy Partners Residential Development, integrated his Blackberry World Edition 8830 with the company's contact database. "Having the ability to access my address book anywhere I go, send and receive e-mail, forward documents and keep up with my calendar is very important," he says.

But more executives are migrating to the iPhone. "The iPhone is great if you want to look cool," says Jason Cianchette, a mobile strategy consultant with Boston's Liquid Wireless, an emerging media consulting group. Originally launched to serve the personal side of life, Apple has begun offering more applications suitable for suits, such as's Salesforce Mobile and Oracle's Business Indicators.

Greg Bonifield says those types of apps prove there's more to the iPhone than just slick looks. Bonifield, a principal at Ashburn, Va.-based Woodfi eld Investments, an apartment and mixed-use developer, uses the e-mail function most. "It [allows] me to keep up with e-mail without lugging a laptop around." But his favorite thing about the device? "I can listen to music or watch movies on it."

With tons of music, games, and movie applications for all types of handhelds, Bonifield obviously isn't alone, proving that mobiles are just as useful for staying in the loop as they are for packing in some pocket-sized R&R.