Don't ever take what just one rep says, At face value. They will say whatever you want to hear to get the sale and to move you out of the store. Since I am a Boost Representative and I have to fix the issues of other stores, I can tell you that only 10% of us are truly informed. The rest make up information on the fly to please you with false words.
I make it my duty to learn about all the changes in Sprint that will affect us Boost Mobile customers/employees. I also keep up to date my knowledge on the handsets and plans. I am constantly learning about new scenarios and how to work around customer service to resolve issues. I wish others would want to learn as I do.
With WiMAX, it's done in 2015. With all WiMAX devices, they will become 3G devices at that time. There are two forms of LTE devices on Boost Mobile. The ones with built in radios and the other with the UICC (Kinda like a SIM card to pick up LTE). There is no way to interchange them.
I'm sorry for everyone who thinks the S2 can get LTE. On a positive note, the UICC phones like the F7 seem to get amazing speeds. I'd almost say faster than the S3! ^_^
And it's cheaper!