Just text, it doesn't mean anything. Obviously this is going to be the same, or near the same version of Sense on the Evo. Its not reading this data from the hardware.
WiMax is a Sprint only thing.
Also, 2.1 doesn't support WiMax/4G. That won't be until Froyo.
He said Wimax and LTE are the same thing and thats not true either...Similar but not the same...Verizon is going to LTE so thats obviously the text is something that is native to the new sense roms in general. Doesn't mean the hardware support is there.