Saw this article on Engadget. Apparently Sprint is actively examining the switch to LTE, and will make their decision in the next 4 to 6 months. That alone is news, but there was this little nugget hidden at the end of the article:
So as has been postulated here and elsewhere, Sprint has been actively preparing for the possibility of a switch to LTE, and has equipment in place NOW that could make the switch.
Sprint evaluating switch to LTE over the next four to six months -- Engadget
As we've heard previously, that switch would be a fairly straightforward one from a technical standpoint due to the carrier's recent upgrades to its network, which allow it to upgrade its gear to LTE simply by swapping in a new baseband card and issuing a software patch.
So as has been postulated here and elsewhere, Sprint has been actively preparing for the possibility of a switch to LTE, and has equipment in place NOW that could make the switch.
Sprint evaluating switch to LTE over the next four to six months -- Engadget