Boingo has a great wireless network for Wi-Fi access around the world.  If you’re on the road they seem to be a pretty good alternative to paying on a site-by-site basis, and it is even a decent price often just for a daily.  Well, it seems that they are pretty keen on getting more subscribers on their monthly plan rather than holding out for the daily subscribers, so they’ve cut their subscription pricing drastically, from $21.95/month to $9.95 for folks joining up now.

The key is to use promo code UNL01090USD0 when you are signing up.

Originally noted here.  Thanks!

UPDATE: Three caveats about this offer.  First is that it expires July 31st. Second is that the “unlimited monthly usage” is actually 3,000 minutes/month.  So don’t leave it logged on overnight at the hotel and you should be fine.  Third is that it is only good in North America; global roaming will cost you per minute.