HP reported that 13% revenue increased on Tuesday for its most recent quarter

Hewlett-Packard Co. (HP) reported that 13% revenue increased on Tuesday for its most recent quarter, a clear sign that IT spending is on the mend.

While CEO Mark Hurd seemed buoyant over the news in a call with financial analysts, he pushed them to think about the real long-term trends affecting IT buying and not to dwell too much on Europe and the falling Euro. The big trends: population growth, urbanization and the unrelenting need for new devices that kind of growth will create.

"The global demographics are rapidly changing, with a fast-growing middle class population migrating to large cities in emerging markets," said Hurd. "In fact, over the next 20 years the pace of urbanization is estimated to be at the rate of about 60 million people a year - this class of people will be expect to be seamlessly and securely connected to the global community with mobile devices and the underlying infrastructure."

Hurd may be reading government reports, such as a National Intelligence Council forecast, which projects that by the year 2025, some 57% of the world's population will live in urban areas, up from 50% today. "Many -- particularly in Asia -- will be joining the middle class and will be seeking to emulate Western lifestyles, which involve greater per capita consumption of all these resources," the report said.

At a later point in the post-earnings call, Hurd was asked specifically about Apple's iPad and what's HP's response will be. Hurd's response was all big picture, no specifics. Hurd said they "never felt" that "one product or one device would become ubiquitous," meaning he's not worried about the iPad because the world is a big place.

It's also crowded. The world population is now at 6.8 billion and it's expected to rise to about 9 billion in 2020.

What HP does see happening is a world turning to "more and more mobility, not less, and more differentiations between what users want to have in terms of capability," said Hurd. "And we expect to play across the gamut of capability."