ImpactRx, an innovative provider of market insight to the pharmaceutical industry, has purchased several hundred Treo 600 smartphones from palmOne for its longitudinal physician network. The devices will be used to collect information that is used to measure the relationship between pharmaceutical sales activities and physician prescribing behavior. ImpactRx has been a palmOne customer since 2001, and has previously deployed palmOne Zire and Tungsten handhelds using the Sprint network.