See: http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=3585The important take away points are as follows:
1) The new brand is Intel Core. There will be three derivatives: Core i7, Core i5 and Core i3.
2) The Core 2 Duo and Core 2 Quad branding will eventually disappear.
3) Pentium, Celeron and Atom will remain.
4) Centrino will also go away and Intel's WiFi and WiMAX products will inherit the name starting in 2010.