Depending on your usage, wired (due to being slow charging, typically) can actually drain the battery faster than it charges.
But since you're using it tirelessly, you can use a fast charger via your 9v outlet (or other fast charging USB).
It sucks it uses so much power, but you're probably better off if you need to charge your phone anyway
Really seemed like this was inevitable - it will be interesting to see if their fair use defense pans out.
I don't expect it will, and I'm worried of the impact of that precedent on the legitimate fair use circuit...