HotHardware.com posted an article on Intel's new Atom family of processors for ultra-mobile devices, formerly code-name Silverthorne and Diamondville.

This new family of chips is based on an entirely new CPU architecture that was designed from the ground up, specifically to address the computing and power consumption requirements of Mobile Internet Devices (MIDs) and Ultra-Mobile PCs (UMPCs). Comprised of some 47 million transistors, Intel's new Atom processor die measures 25mm2; so small that you could fit eleven of the cores in the area of an US penny. Built on Intel's 45nm hafnium-infused high-K process, these chips are said to have power consumption characteristics in the .6 - 2.5 watt range, though they're reported to have 512KB of on-chip cache and an operating frequency topping out at 1.8GHz currently.

Intel Announces Atom Mobile Processor, Silverthorne Launched