... Schelle’s predictions came in the run-up to the2011 NAB Show in Las Vegas. Schelle said equipment makers would be showcasing new receivers for the service, among them, the new Valups Tivizen receiver for the iPhone and the iPad; the Clydle iPhone cradle receiver; and portable WiFi devices from Crestech. RCA will also have a new line of portable Mobile DTV sets on hand, and Winegard will display its in-vehicle system.