What's Formula 1 without the constant refueling? ;-)

<nitpick> Since the 2010 season, F1 hasn't had any refueling during races. </nitpick>

Tires becoming useless after 15 laps is probably the better analogy.

Haha - shows how much I watch racing. That's cool though!

Could it charge over HDMI? I suppose that's the key question.

A HDMI port can provide 5V at a maximum current of 50mA. This would not be enough (or rather practical) to charge a mobile phone. It's less than the 100mA offered by USB2 (before device enumeration).