I think that, assuming it doesn't come at the cost of anything else (e.g., durability), it'd be a nice feature to have!
I'm working to integrate wireless charging pucks/mats integrated into furniture and I can see a future where I have a coffee table and desk with a charger built in and I can just set my iPad down on the table/desk when done and not have to worry about plugging it in.
Anytime I can reduce the number of wires strewn about (by hiding them in a table/desk, for example), I'm on board!