The Treo 650 for Sprint PCS is the best combination PDA/Phone available today. The Palm OS and touch-screen interface has always been user-friendly, and this version is no exception. Memory expansion, Software upgrade/download, Internet/Email, Text messaging, and Address book features are also extremely functional and practical. The only issue I have though with the Palm OS is with the Address book and saving phone contacts directly from the "Call Log," you can't do it. Overall, the Treo 650 is the best offering from all manufacturers for any cellular service. Though I can't wait until the Treo 700 with broadband capabilities arrives.
I love it because it is so usefull for work, school, traveling or just about anything. For me it's more convinient for work and maybe traveling once ina while.