[russell_h]

Also, this seems to be month-to-month as opposed to a lifetime deal. "Unlimited" for a month could be true. "Unlimited" for life isn't.

[rdl]

I wonder how the duration-limited "all you can fly" JetBlue deals worked out for them.

"Unlimited airpasses" for international visitors to places like Southeast Asia are pretty common, combined with long-haul international flights, too.