Well i mean, SB quads have a die size of 216mm, where as nehalem is 263mm. So even with adding an entire IGP, SB is still about 20% smaller than Nehalem. Now, of course we dont know how much it costs intel to make both these CPU's, but my guess is SB is a decent amount cheaper. Knowing this, and knowing that IB will be 22nm, its pretty easy to dsee 6 cores around $300. If they just remade SB at 22nm, it would be around 150mm. Make that a 6 core and you are looking around 225mm, or almost exactly the same as SB. Granted, thats assuming they change nothing, so between 250mm and 300mm is a pretty safe guess for a 6 core IB with some pretty hefty upgrades over SB. Thats right where Nehalem was, and therefore we should be seeing similar to Nehalem pricing by then, or around $300.