So in the UK, MacDonalds do free wifi (for Nintendo DS customers isn't it?),
Starbucks are rolling out free wifi (starting in London & Birmingham): http://news.zdnet.co.uk/communicatio...2129099,00.htm

I know they use T-Mobile, but the news item does specifically say free: "will allow customers to surf the Web, check email and download files at high speed for free, as long as they have an 802.11b-compatible laptop or PDA."

Then there are, as with other places, various coffee/snack bars that do free wifi.

I had a quick look with this website, which showed some sites: http://www.hotspot-locations.com/ are there better versions?

The big issue is, as was previously mentioned, that you need a list of these sites before you go, and I always forget.

Seems like this could be a good Maemo-mapper POI integration project - go to a website, put in the location and download a POI file of free wifi/T-mobile/whatever provider you have hotspots.