When the Pixi was 
first released on Sprint, one of the big drawbacks when compared to the Pre was lack of WiFi. Evidence from the FCC suggests that those wanting a WiFi’d Pixi may be in luck very soon.
A CDMA Palm Pixi has been tested for 802.11b/g WiFi by the FCC and given Verizon’s gearing up for Palm webOS-based handsets for early next year, it’s likely a Pixi with WiFi capability will show up on Verizon. Are you headed to Sprint for a Pixi now, or are you willing to wait a little longer to see what shows up on Verizon?
source: engadget
