Boingo Wireless has a new app for the iPhone, iPod touch, and, soon, the iPad that lets you buy an hour of service at a time: The Boingo Wi-Fi Credits app will let you connect from any iPhone OS device for $1.99 for 60 minutes at a single location in Boingo's aggregated worldwide network. You can also purchase 11 credits for $19.99.
Boingo has a $7.95 per month mobile plan that all iPhone OS devices qualify for; the company reiterated today that the iPad would be supported out of the gate. That's why two bucks for one hour seems a bit steep, since Boingo doesn't require a contract commitment to use its mobile service.
The only other worldwide pay-as-you-go system is Skype Access, formally launched a few days, which charges US$0.22 per minute for on-demand access. (See my article from 18 March 2010.)