German site ComputerBase posted (and then later took down, but captured by Engadget) a few slides that could be confidential information from Intel presentations dealing with Sandy Bridge and next-generation SSDs.
Intel will be rolling in the 25nm flash in place of the current 34nm SSD offerings. This will be the basis for the Postville refresh for X25-M parts in 160GB, 300GB, and 600GB variants in Q4 this year.
In the enterprise space, Lyndonville will hit in the first quarter of 2011 in 100GB, 200GB, and 400GB sizes.
For CPUs, the naming scheme for the second-generation Core i processors will change slightly so that the Sandy Bridge-based products will be identified by the extra '0' digit at the end, e.g. Core i7-2600, Core i5-2520M.
Chinese site Expreview has made a chart of Sandy Bridge desktop CPUs based on its own sources.
Intel- take a page out of AMD's book. Provide a reasonable upgrade path for customers who already dropped $250+ on an LGA 1366 board.
The 6-core CPU's will be in the higher end market segment like it is now, but i don't believe it will still be the 1366 socket.
Also, 1155 isn't a typo. There's one less pin than than the 1156 socket.