That reference(even if Wikipedia) seems to imply that the first Sandy Bridge processors released were the Core processors, not that all Sandy Bridge silicon will be or is branded Core.
Are there any cases of laptops or PCs with Celeron processors being referred to as having Core processors?
My apologies, I meant to link to the list of processors in that article -- by pure count (and, anecdotally, most often), most Sandy Bridge processors are Core processors.
Do you have any reference for that?
Intel's own page shows that only i3, i5 and i7 are part of the family as does Wikipedia.
http://www.intel.com/content/www/us/en/processors/core/core-...
http://en.wikipedia.org/wiki/Intel_Core