Wireless charging on a mobile phone sounds like something you can live without your whole life, but after using it for a while you wouldn't want to give it up. A bit like touch screens. I remember when a friend of mine showed it first in his Nokia 7710 around 2004 I wasn't that impressed.
I've already had some thoughts about using nfc tags when I get a new phone. It would have been nice to go with a wireless charger, but can't get everything right yet.