Hi all
I just had a very bad experience with boingo. I bought 1 h connection for about 6 euros and did not use it all. After some days I re-entered the boingo system thinking to use the remaining time and they charged my credit card by pay pal for 16 euros with asking for any permission.
I wrote them and they told it was for the second connection (much less than 1 hour). So, pay attention to boingo, they can charge your credit card without asking for permission!