[twizt3d]

not sure this is what OP meant, i dont think hes trying to share his phones internet connection via his carrier, i think he wants to connect his phone to an existing wifi network, and just use his tp2 to connect to that wifi, then share the wifi to the laptop via activesync or something similiar. Im not sure Wifi router does this.. altho I could be wrong as Ive never really used it for this purpose.

I believe pdanet does, it allows you to pick your connection type, being sprint, wifi, or dialup.