Together the Hotspot 2.0 and WBA initiatives aim to create advanced Wi-Fi hotspot networks with an improved end-user experience for authentication, security, network selection and roaming.

FORBES: Making Wi-Fi '3G Secure' For Mobile Data Offloading

Globalgig is a unique service that removes the need for expensive roaming costs when accessing mobile broadband across its international network.

ENGADGET: Globalgig expands its roaming MiFi coverage into more English-speaking countries (plus Sweden and Denmark)

If Clearwire can upgrade its network form WiMax to TDD LTE (85% similar technology) as scheduled and China Mobile (650 million Subs) finalizes a deal with Apple while completing their TDD LTE network, then Sprint will have a game changing world iPhone capable of roaming from FDD to TDD LTE.

FORBES: AT&T CMO: This Is How We Sold Millions More iPhones Than Verizon In 2011