Using a PDA as a Modem? Which one? school me!

My blackberry is now 4 years old, and I may need to buy a new pda soon. What is the best out there, and what can be used as the fastest type of modem? How fast is it compared to say, what comcast offers in terms of internet speed?

Check out I use my Sprint Instinct as a modem. Actually, I’m online with it now.

Blackberry’s can connect to the internet using PAM.

Google it. You’ll find results.

Troy, is it quick? I have a blackberry and it is slow as molasses as a modem.