Intel introduced four new processors at the Computex 2009, including a low-power version and a value chipset, to usher in mainstream ultra-thin laptops.
Intel ultra-low voltage (ULV) processors will enable new sleek consumer laptop designs less than an inch thick, weighing 2 to 5 pounds, and at mainstream price points.

These new Intel processors also consume less power to enable longer battery life, delivering the type of experience consumers expect from Intel-based laptops. In addition, Intel also announced the addition of new devices that can now wirelessly connect using optional Intel My WiFi Technology.
Intel extends the standard voltage (SV) Intel Core 2 Duo processors, with offerings up to 3.06 GHz. In addition, Intel unveiled the Mobile Intel GS40 Express Chipset for the new ULV-based laptops. This value chipset enables ULV-based laptops to support features consumers have come to expect from laptops including HD playback, Windows Vista Premium support and native support for integrated HDMI.

Now that Netbooks sell like crazy, Intel wants to make sure Notebooks are not a dying breed and tries to make ultra-thin notebooks affordable for the masses.
Via Intel.