So you'd rather run the mains power to a device that beams power through the air to a light fixture rather than just run a wire to the light fixture?

Or a battery maybe? I don't know ... if you try to think ahead of what is within the realm of physics but not yet economically or technologically viable there are actually quite a few possibilities.

For the record. I don't think that there will be a physical sim card in your bathroom light but I think that all these wireless communication standards (infrared remote controls, wifi, bluetooth, 4g mobile data ...) will converge into one and the use of that will be so cheap that it will be used everywhere.

I hope you're aware that uBeam is a scam which cannot work.

There are perfectly valid electromagnetic methods for doing wireless power.

Not that you'd ever use them for a light bulb.