AT&T has acquired privately-held Plusmo, a provider of cross-platform mobile application, bringing to AT&T an open standards technology that will simplify mobile application development and deliver a better application experience for consumers. Terms of the deal were not disclosed.

Up on completion of the deal, Plusmo will become part of AT&T Interactive, and the Plusmo mobile application development platform is expected to be used by multiple AT&T subsidiaries, including AT&T Mobility.

The company said that the Plusmo platform reduces development time and costs by enabling developers to create widgets and applications using common web development standards that enable easy deployment across multiple mobile operating systems and devices.

According to the AT&T, the addition of Plusmo will give it an ability to accelerate its mobile application development. It will also help reduce development time and costs, and allow for over the air updates whenever new features are available.

David Krantz, president and CEO of AT&T Interactive, said: “Plusmo’s technology will help us build upon the success and momentum we’re experiencing in mobile local search, which continues to see strong growth. The addition of Plusmo adds a new dimension to our technology prowess through its multi-platform approach. It highlights our commitment to invest in mobile application innovation and search leadership.”