This is SO bullshit. I think cell phone use has scrambled their brains!
The phone would communicate over a radio tower, not directly to each other. All you're doing is doubling the energy output if you place them next to each other.
The energy does not get stored in the egg, it's in the radio wave. Figuring out how much the egg receives of the wave energy is non-trivial (you need to know volume, density, energy absorption of the proteins and fats), but even if the phone output is 2W (which is b.s. too), the egg would get maybe .01% of that or less.