Is there a way to buy a PDA cell phone and use Verizon for phone service & Sprint for internet/email?

Maybe you need an unlocked phone for that or something?

Is there a way to buy a PDA cell phone and use Verizon for phone service %26amp; Sprint for internet/email?
The internet/email and the phone service connect to the same network and switch systems so you would need two separate phones. I'm not sure why you'd want sprint for internet and email, as their data connection isn't as good as Verizon's (especially their Rev A technology).
Reply:No, you would have to buy two of the PDA cellphones and have one run on sprint, and one verizon.