Research In Motion Ltd.'s BlackBerry and Palm Inc.'s Treo, the best-selling so-called smart phones in the U.S., are shedding their corporate colors to pursue consumers. Once aimed at business clients and available in black or gray, BlackBerry and Treo are challenging traditional consumer phone makers such as Motorola Inc. amid record demand for the e-mailing handsets. The latest models come in crimson, copper and white, and double as music players and video recorders.
