color=#000000 size=2>HP recommends Windows Vista Business. FreeDos Intel Centrino Pro mobile technology featuring the new Intel Core 2 Duo Ultra Low Voltage Processors Ultra-light form factor starting at 2.9 pounds and as thin as 0.976 inches! Integrated optical drive support 802.11n (draft) WLAN + Bluetooth 12.1-inch diagonal Illumi-Lite WXGA display Flexible battery choices 3/6/9 cell Full magnesium alloy enclosure and magnesium alloy support structure Security Drive Encryption for HP ProtectTools; HP Fingerprint Sensor Ease-of-use HP QuickLook; Secure Digital slot, Dual-pointing devices Reliability HP 3D DriveGuard; HP DuraKeys Hewlett Packard