Leakages in the system would be an internal matter for timely plugging before going public with an adequately patched up commercial roll out length little room for the competition to any slips showing.
However with the speed of 4G the term GB is soon going to become gibberish and outdated with the tera tearing into the IT tents as well as the households, entertainment and of course the corporate corridors.
The prices have to be attractive and soon in terms of teras rather than GBs.
Btw, we are living in 2016 by the time a ride on the 4G is commercially waved off.