Samsung Instinct M800
no wifi?
But with EV-DO Rev. A, it's not needed as much. You also got to think of other reasons, such as battery life.
Also, it's much more difficult to have Wi-Fi in a CDMA [Sprint, Verizon] phone than a GSM [AT&T, T-Mobile] phone.
Also, if you really need internet for your laptop (which is the only reason I can think of that you might need WiFi) you can pay $15 to teather it, or get an aircard.