So, yea, this link was about them starting it in the UK & Ireland.
It has already been around in the US & Canada. It is the deal where you have a registered Starbucks Card and you can use the wifi for free with your login. As it is in the US & Canada, you can use it in either country with just one card. That is to say, I have a Starbucks Card registered in the US, and I can use the WiFi in both the US & Canada. I really hope that they keep it open this way with the UK & Ireland as well. We are already able to use our Starbucks Cards in the UK & Ireland to make purchases, hopefully they'll make the WiFi inter-operable between countries.