Centrino notebook will - for now - be based on a Pentium M processor, with associated chipset and wireless functionality. In the Sonoma generation, chipset will be a 915PM, 915GM, 915GMS or 915GML, all members of the 'Alviso' family, which, as the '915' and 'M' naming scheme suggests, is a mobile version of the desktop 915 series, aka 'Grantsdale'. [It additionally provides] "power-optimised" 533MHz frontside bus, PCI Express, Serial ATA, 400MHz and 533MHz DDR 2 SDRAM, Intel's Hi-Def Audio, dynamic screen backlight power management, and - in the case of the GM and GMS chipsets - its DirectX 9-compatible, Hi-Def video-enabled Media Graphics Accelerator 900 integrated imaging engine.
Specific prices don't seem to be currently available, however the Centrino bundles incorporating the new CPUs and chipsets, and existing Wi-Fi adaptors range from $270-705 - bought in batches of 1000, that is. Expect to see this in the shops soon.