As expected, Lenovo has unleashed new Centrino 2 powered laptop series, the SL, R, t and W of ThinkPads. First in the line is SL series with SL300 (13-inch), SL400 (14-inch) and SL500 (15-inch) flavors, HDMI port, Blu-ray option, 3G module from AT&T, WiMax support and prices ranging from $699 to $1199. The W series will sport ATI Mobility FireGL graphics and Display Port. T series features Switchable Graphics, which lets you switch from discreet to integrated graphics without rebooting the computer, and Display Port. We can expect them in stores somewhere in August.