Hollywood's All Ears

Some manufacturers turn to outside marketing firms to get their phones in stars' hands. Palm, for instance, hired Avantgarde, a San Francisco-based marketing company, to outfit stars like Matthew Broderick, Mario Batali and Peter Gabriel, among others, with its line of Treo smartphones. Others go in-house: Motorola runs its own invitation-only showroom in West Hollywood, designed solely for A-listers.