Probably an economical option for many multi-iOS-device households (extra fees apply if you want to share the connection with non-Apple devices, however)
Kirkland 4G broadband provider Clearwire today announced a special version of its mobile hotspot for people using Apple's iPhone, iPad and iPod Touch.
The iSpot is a puck modem similar to 4G Sprint Overdrive, but it's white and "made exclusively for Apple mobile products," Clearwire said in its release.
Clearwire's selling the iSpot for $100. An introductory data plan costs $25 per month and provides unlimited data at speeds of 3 to 6 megabits per second, with bursts up to 10.