I don't see a lot of wireless mice in PC-land. They exist, but don't seem to be as common as with Macs. I did have one for a bit, but switched back because it ate batteries way too fast.
Batteries last very-very long in many mice designed for PCs. The biggest reason I'm sticking to a wired one is weight and response time.
Quite a lot of phones support wireless charging these days.
Which, the newest 2 Nexus phones and the Palm Pre? 0 iPhones can do wireless charging, and those are pretty popular. Wireless charging still also requires a big dock thing to be plugged in to USB or mains power; it's not as if all (or any, that I'm aware of) laptops have a built-in zone which charges anything you lay down on it.
The Galaxy S6 and a bunch of others, including some HTC Droids, 8X and others, LG G3, many Lumia devices, Blackberry Z30 and Classic. But yes, not the iPhone.