Smartphone!!!! (Score 1)

Why hasn't anyone mentioned the PDA/Phones combinations? I personally have the Kyocera Smartphone and find it extremely useful. With only one gadget, I get a date book/calendar, calculator, address book, note book, (limited) web browser, e-mail client, and e-book reader. There's even a VNC client out there for the Smartphone.

Why haven't the phone/PDA combos taken off more? size? price?