<P> In June 1999 Qualcomm released the "pdQ Smartphone", a CDMA digital PCS smartphone with an integrated Palm PDA and Internet connectivity . </P> <P> Subsequent landmark devices included: </P> <Ul> <Li> The Ericsson R380 (2000) by Ericsson Mobile Communications . The first device marketed as a "smartphone", it was the first Symbian - based phone, with PDA functionality and limited Web browsing on a resistive touchscreen utilizing a stylus . Users could not install their own software on the device, however . </Li> <Li> The Kyocera 6035 (early 2001), a dual - nature device with a separate Palm OS PDA operating system and CDMA mobile phone firmware . It supported limited Web browsing with the PDA software treating the phone hardware as an attached modem . </Li> <Li> Handspring's Treo 180 (2002), the first smartphone that fully integrated the Palm OS on a GSM mobile phone having telephony, SMS messaging and Internet access built in to the OS . The 180 model had a thumb - type keyboard and the 180g version had a Graffiti handwriting recognition area, instead . </Li> </Ul> <Li> The Ericsson R380 (2000) by Ericsson Mobile Communications . The first device marketed as a "smartphone", it was the first Symbian - based phone, with PDA functionality and limited Web browsing on a resistive touchscreen utilizing a stylus . Users could not install their own software on the device, however . </Li>

Who came out with the first touch screen phone