[kelnos]

> no one complains about carrying those when going on a trip.

I kinda think "going on a trip" is a minority subset of the times when people bring charging gear with them. Regardless, I personally would find it a huge annoyance to have to carry a charging pad. Right now I just bring my laptop charger, and use it for both my laptop and (Android) phone. I don't want to bring a charging pad in addition.