DailyTech has some more info about NVIDIA's upcoming MCP61 chipsets:
The MCP61 family will not replace the current GeForce 6100 family. Instead the MCP61 family will slip right below the GeForce 6100 family in terms of target market. While the GeForce 6100 family is a two-chip design consisting of a GeForce 6100, 6150 or 6150B coupled with an nForce 410 or 430, the MCP61 family is a single chip design.
NVIDIA will have three variants of the MCP61 family—MCP61P, MCP61S and MCP61V. MCP61P is the premium product with support for one PCI Express x16, two PCI Express x1, standard definition video output, Gigabit Ethernet, 10 USB ports, four SATAII, RAID 0, 1, 0+1 and ASF 2.0 management. It will also be the only member of the MCP61 family to have an sDVO output for external video output capabilities such as DVI, component and TV out..