Reading another post about when we’ll switch from our present Fairphone, I have come to a rather ridiculous but sincere advice: if I consider what happened to those devices I specifically used really longer these last years, I abandoned them when recharging the battery becomes unfeasible.
For most of them I did replace batteries (like will be possible on the FP) : in fact, I renounced when the charging interface broke.
Which, to me, means… the next Fairphone may well profit from two USB connectors 
I knew you would smile.
But now, the more I think about it, the more I believe it’s interesting.
Having two charging plugs would indeed definitely increase lifetime, at least it certainly would have for the devices I had to abandon.
But it brings much more: in a context where USB on-the-go is soon to become the norm, where MHL video output through the USB port is already developed so much that you find, today, crappy hybrid adapter cables that allow to both recharge the phone while outputing the MHL video part through a tentacular Mains/usb/HDMI cable network, I definitely believe that UHB is not dead and worth considering as a future on its own.
I’d even go as far as saying that a second, normal USB port (normal as in “not miniature”) would be very cool to instantly plug all these USB sticks that your neighbor hands you with his-paper-for-the-conference-ah-too-bad-otherwise-you’ll-have-to-buy-the-preprint
Daring, yes.
The phone with two USB ports.
Mind you: they’d talk about us -for lots of reasons 