Intel's next-generation mobile processor is already taped-out and working perfect. Merom, the successor to Yonah, will probably be launched within a year and will offer a nice performance boost.
The mobile Yonah processor is coming by the end of the year and will be made on a 65nm process. The chip giant plans to launch both dual-core and single-core processors.
Merom will use a new, more advanced and efficient architecture than the Banias/Dothan CPUs. It's expected the Merom architecture will be 20 to 30 percent faster than the Banias architecture per clock.
Source: The Inquirer