Dr. Rosenberg is the founder and CEO of a Seattle technology company focusing on location tracking applications for GPS enabled smart phones as well as the inventor, designer, and author of a GPS mobile application software product currently available for iPhone and Android devices.

Dr. Rosenberg was the lead user interface and human factors engineer for the first two-way pager for AT&T in 1995. Dr. Rosenberg designed a complete VoIP phone system for the consumer electronics market that included an extremely wide set of user interface features not typically found on household mobile phones such as Microsoft Outlook integration, YouTube integration, internet radio, camera, file browsing and file sharing.