There are quite a few here in the UK although a lot of them are baby feeding and changing rooms.
The nicer ones Ive been in (mostly to change DD as I'm happy to nurse whervenr) have a couple of changing tables and comfy chairs, in the baby stores theye is usually a bottle warmer as well but I've never noticed that in the shopping centres. Again in the baby stores they is often a box of toys for older children. There are often curtains which you can draw around the chair if you'd like more privicy.
I have 2 issues with the feeding and chaging rooms, firstly when the nappy bins are not emptied often enough they stink, secondly DH always feels a little uncomfortable going in there to change DD.
Many places also display a "breasfeeding welcome logo"
http://www.breastfeeding.nhs.uk/ta_o...rform_2005.asp - it's about half way down the page. I;m not sure if they have to meet some standards to display that but everwhere I've ntoice it the staff have been friendly, even asking if I woudl like a glass of water while I fed DD.