Intel is already upgrading its Core Duo processors and the successor will be cleverly named Core 2 Duo. There will also be a Core 2 Extreme for those power hungry people out there that will be released in July with a speed of 2.93GHz.
If performance isn’t what you are looking for then maybe you would be interested in saving some battery life. Intel will also be releasing an ultra-low-voltage (ULV) processor that consumes only 0.75 watts (the Core 2 Duo uses one to two watts). This will run at 1.06GHz and will be released later this summer for about $289.
I would lean toward the low voltage because it is always nice to have a long battery life. Leave the gaming performance to the desktop computers.
News Source: Engadget