SayNow has opened its platform to third parties so that others can build applications on it.

The technology from SayNow will join other phone technologies at Google. In addition to its Android mobile operating system, the company offers Google Voice, a service that lets people combine multiple lines under one phone number and one voicemail box. Google just recently started letting people port their existing mobile phone numbers to become their primary Google Voice number. Previously, Google would assign users a new phone number.

Just before announcing plans to step down as CEO of Google, Eric Schmidt wrote a column in the Harvard Business Review noting that all of Google's goals for this year are mobile-related.

Google has maintained a healthy acquisition clip over the past year. Other acquisitions during that time include Slide, Angstro, Jambool, and Like.com. It also announced plans to buy ITA Software, although that deal may come under review by the U.S. Department of Justice due to antitrust concerns.

The IDG News Service