Today, AT&T announced that they will begin selling the BlackBerry Curve 3G and BlackBerry Pearl 3G in time for the holiday buying season. The Curve 3G (9300) will be available on an unspecified date — before December 25 — and will retail for $99.99 with a new 2-year contract (no mail in rebate required). The Pearl 3G (9100) will be available starting October 17 in stores and online and will retail for $149.99 on-contract (again, no rebate required). The devices will add to AT&T’s BlackBerry lineup which also includes the Bold 9700 and Torch 9800.