Verizon refused to discuss plans for the event. Motorola didn't reply to a request for comment.
The Sept. 5 event follows one scheduled by Nokia and Microsoft where a Windows 8 smartphone is expected.
its Ativ S Windows 8 smartphone in Berlin on Wednesday.
Matt Hamblen covers mobile and wireless, smartphones and other handhelds, and wireless networking for Computerworld. Follow Matt on Twitter at , or subscribe to . His e-mail address is .
in Computerworld's Mobile/Wireless Topic Center.