With Treo 180, I no longer need the usual infra-red + built in modem handphone as they are already incorporated into the handset Treo180. Treo 180 basically integrates the familiar organiser powered by Palm OS and a Dual band GSM 900/1800 (sold in Asia Pacific) or GSM 900/1900 (Sold in America) mobile phone built in. With this device, everything can be done with the stylus by clicking on the options on the screen. The device also comes with a built in Blazer™ browser which you could connect to the World Wide Web wirelessly. For those who loves to SMS, the Handspring has they all ready for you.