Sprint outs unlimited data on new LTE in LG Viper announcement

This probably shouldn't be much of a surprise, because Sprint has been living and dying on its unlimited plans, and has been offering unlimited data on its pseudo-4G WiMAX network. So, changing that strategy would put the carrier at an even bigger disadvantage than being so far behind in building an LTE network.
Interesting that the confirmation of unlimited data plans on LTE was announced in such a muted way. We'd expect that Sprint would want to make a bigger deal of it, but maybe the carrier wants to actually have an LTE network before touting its features.