Technologies that can improve corporate bottom lines dominated the buzz at Interop Las Vegas, promising efficiencies and returns on investment that may help stave off cuts to IT spending in a tough economy.

Virtualization, service oriented architectures (SOA) and software-as-a-service all were cast in the light of improving efficiencies, speeding up applications, even enabling new types of products that can improve corporate earnings.

"I think it's time to rethink everything we’ve done with enterprise computing," says Mark Templeton, CEO of Citrix in his keynote, urging that businesses forge ahead with corporatewide IT improvement plans and adopt a software-as-a-service model both internally and externally, adding that that takes bold initiatives by IT executives. "You need to think a new way about your role as an IT leader," he said.

Templeton promised Citrix will round out its virtualization products later this year to further cost reductions by reducing the number of physical servers needed to support corporate networks and dynamically adjusting server capacity based on demand

Vendors touted SOA as building services that can be shared across business units using existing resources and lower long-term expenses. SOA can make it easier to do compliance reporting, software-as-a-service, legacy modernization, unified communications, business intelligence and various other important tasks, says Burton Group analyst Chris Howard, who moderated an Interop session on the technology.

Despite tight budgets, attendees swarmed the show floor and seemed focused on specific technologies as they waded through more than 350 exhibition booths, bombarded by sights and sounds including networking gear, rides, video games, car raffles and even a gospel choir. Show organizers wouldn't estimate what the final attendance count will be but claimed that attendance was tracking higher than last year.

Money-savings proved paramount in show-related hype about other well-established technologies. Wireless is less expensive to set up and maintain, and is the logical replacement for wired networks, says Kathy Paladino, president of Motorola's enterprise mobility unit, who delivered a keynote. The availability of 802.11n wireless gear signals the arrival of LAN-like quality that will phase out wired infrastructure. "The question is not why to cut the wires but when," Paladino says.