With the exception of the Thinkpad X41 tablet, Lenovo is rounding up the rest of the Thinkpads and giving them Intel Core Duo updates. The company announced May 16 that its Thinkpad Z series, including the Z61m and Z61t, as well as the budget-friendly Thinkpad R60, will receive dual-core processing power. The Thinkpad Z61t is the more portable version of the Thinkpad Z61m, weighing under 5 pounds. The machine still maintains a 14.1-inch screen and Thinkpad keyboard and Trackpoint.