Research in Motion has filed suit against Motorola, claiming the handset maker is blocking RIM from hiring former employees according to a complaint filed yesterday in Circuit Court of Cook County, Illinois.

The suit, obtained by InternetNews.com, comes in response to a Sept. 4 court filing by Motorola that sought to restrain RIM from hiring former and current employees on the basis of a February agreement between the two handset makers.

RIM, maker of the popular BlackBerry series of mobile devices, now seeks a court order invalidating that agreement, which stipulated that neither would solicit each other's employees.

See here for the rest of this article at InternetNews.com.