I live in Northern Ireland, and I find that magazines appear in my shops one day later than they do on the UK mainland (must be the time it takes to cross the water) so I expect to see POP in the shops this weekend... didn't see it this morning.
As a side note, I find that import magazines appear in Ireland much faster than they do in Northern Ireland - I've been in Easons in Galways or Dublin, and have seen a US or Euro magazine, passed on buying it, only to have to wait two weeks for it to appear in the Easons in Belfast. Though the advantage of buying in Belfast rather than Dublin, is not having to pay the extra tax on the cover price.