I consider sold out to mean stock stays shelf for no more than one business day, so both are sold out. Ihave of XB1 shipments lasting up to 72 hours. I live Hawaii now and have seeen one on shelf, I usually go to stores after 5pm so that tells me if I see none either no shipments or they went quick.
End of 2009 Predictions (Set, January 1st 2009)
Wii- 72 million 3rd Year Peak, better slate of releases
360- 37 million Should trend down slightly after 3rd year peak
PS3- 29 million Sales should pick up next year, 3rd year peak and price cut