In 2008 Intel will introduce two new sockets for the next-generation Nehalem architecture. This will be the Socket B and Socket H:
As we know, Nehalem is 45nm based and we are going to see some exciting changes such as IMC (Integrated Memory Controller) and CSI. Socket B will be LGA1366 and Socket H will be LGA715. The reason why Socket B has so many more contact pads is pretty obvious. It is due to the IMC on the Nehalem CPU. Since there is a Socket H version as well, we can expect there will be another Nehalem based CPUs without IMC.