Toronto-based software developer Viigo, the creator of a mobile content reader, has been acquired by Research in Motion. 

Viigo makes an application for RIM's BlackBerry smart phone that aggregates various streams of information such as news, politics, sports and weather.

No details of the acquisition were released, but the firm is estimated to have between 25 and 50 employees. Given the employee base, it likely has less than $10 million in revenue.

"Our team has joined RIM's global organization and will continue to bring our expertise in BlackBerry application development and real-time content delivery to the BlackBerry platform," Viigo president and CEO Mark Ruddock said in a release posted on the company's website.

RIM is aggressively trying to match Apple Inc., which has an ever-growing community of application developers. Viigo had previously received some financing through the BlackBerry Partners Fund, and has moved into the enterprise solutions market – Research in Motion’s back yard – and into e-commerce.