Looks like UK launch day for the Xbox 360 S on Friday was a commercial hit, with retailers selling out shipments within hours of opening.
Now they are reporting difficulties in re-stocking the redesigned console, according to the games site Electronic Theatre.
So either they got the estimates of demand wrong, or much less likely, Microsoft is artificially restricting stock.
Supplies will be back to normal quickly enough - in the meantime you could always pick up earlier models at a nice discount.
Check our XBox 360 250GB review.