N800 experience with OS2007 was disappointing in Paris. Could only connect to about 3 from 30 free WIFI spots throughout the city which made the device a rather useless brick. Just installed OS2008 and have finally working WIFI 
here. So hope remains.
btw: http://tupalo.com/vienna/tag/helge-free-wifi (added the 16th and 19th district so far).
More awesome stuff: