I don't think it quite works that way. That like taking a flashlight, and putting different batteries in it hoping that a Laser comes out instead of light. I don't know the exact frequencies and power output of WiMAX, but I know that it's higher than WiFi (at least if I recall correctly). Anyone want to back me up on this?

Hardware Easter Egg? Maybe an actual WiMAX chip/antenna. Or a 2+ Megapixel Camera? Or maybe ANOTHER FM radio?

Though I don't think "easter egg" is the appropriate term. Easter egg is supposed to be something hidden and funny that the devs put in, with not necessarily much usage intended. Like a hidden video of an 810 EATING an iPhone somewhere deep in the filesystem. Now THAT would be an easter Egg I'd like to see