in my area (waltham, a city outside boston, MA) it goes as follows:
DS - no where to be found except surprisingly BB where there's both regular and new editions
Wii - i am yet to see one in a store --> sold out
360 - available everywhere, small stacks especially at BB
PS3 - available; in larger stacks (not like the picture depicts) about 4x bigger than 360 stacks
PSP - i dunno...
it's just how you see it; everyone knows the case for Nintendo but seeing stacks for 360 and/or PS3 could mean they're having more successful shipment numbers