Am not in the UK at the moment, so am not sure if they've actually started selling it in London shops, but I saw a boy here in Malaysia wearing a London 2012 blue rucksack and matching London 2012 blue t-shirt. The mum said a relative bought for them in Greenwich observatory souvenir shop. Don't know anyone in Greenwich though!
I was wondering if anyone had spotted it in central London, then I can get a friend to buy for my dd (6).
TIA!~