Apple is planning to hold a press event at its headquarters on Thursday and comments made as recently as Wednesday suggest the company will make its iPhone more popular with enterprise users.

Tomorrow we're going to talk a bit about the iPhone in the enterprise at our event on campus, said Peter Oppenheimer, chief financial officer of Apple, at a Morgan Stanley conference. We believe the iPhone is great for all parts of the market, including the enterprise.

Apple is expected to unveil a new software development kit tomorrow allowing 3rd party software engineers to make applications for the phone, extending its features and uses.

In addition to opening up the iPhone to developers, he suggested that other changes may be on the horizon.

While the company has created revenue-sharing agreements with operators, that model may not apply everywhere into the future, Oppenheimer said.

We're off to a great start, but we're learning and we're not wedded to any one particular way to go to market, he said. Our objective is to drive scale and take market share.

This year, Apple expects to offer the iPhone in additional European countries and enter markets in Asia, he said, though he did not indicate when.

The company has officially released the phone in only 4 markets however evidence is appearing that shows phones operating in a number of regions where there is no official carrier. Oppenheimer said that's indicative of high demand however.

We believe it's occurring at a significant rate, it's just hard to estimate, Oppenheimer said. We believe the unlocking is occurring because of unprecedented demand for the iPhone. ... We view this as a positive indicator of future demand and interest in the iPhone.