Any factually based estimates on how many PS3 slims for initial rollout?

[dougsdad0629]

I've seen a lot of threads about this retailer or that retailer selling out of the PS3 Slim and/or limiting one to a customer.  I've also seen guess after guess about how many units Sony is actually making available on the initial rollout.  My question is, does anyone have any FACTUALLY based estimates/guesstimates on how many units?  Can anbody point to any source(s) to ground this conversation in reality?  I'm just as excited and interested in what the Slim will do for PS3 sales as the next guy, but I'm looking for realistic information here people.