Three major carriers have released the BlackBerry Curve 8330 or are gearing up to do so shortly, in addition to those that have had them out for a while. As promised, Alltell is now offering the badboy in their online store for $299 after online discount and mail-in rebate. Sprint ads for it are appearing in American newspapers, offering a red or titanium Curve with a price of $179 after rebate, and with a two contract. Finally, Verizon’s will be available online and over the phone on May 9th, and over other channels on the 12th. It’s reported to be going for $270 after a $50 rebate and a 2 year contract.