I travel, a lot. And it's not to isolated areas with great network connections. Rather, it's to very large trade shows with tens of thousands of mobile devices blowing up the network that always results in a recipe of nine parts congestion and one part annoyance.
iPhone and iPad apps tagged "WiFi hotspots."
WiFi Directory is a Cool Way to Find Hotspots
WiFi Directory — You can never have too much Wi-Fi, which is what makes WiFi Directory (Wireless Hotspots Finder) as appealing to me as a medium-rare steak is to my dog Henry, who will eat anything other than dog food.
Boingo Wi-Fi Takes You Wherever You Want to Go
Boingo Wi-Fi makes it easy for you to set up a wireless account for your iPhone and then log into any hot spot on the ubiquitous Boingo Wi-Fi network.
The monthly fee is $7.95 for unlimited access and when you sign up using Boingo, the first month is free.