This seems pointless. The only way this would achieve anything would be to have a female micro-usb on the device - which is also fairly pointless.
If it's about convenience, eg. you forget your charging cable:
- I've never seen anyone carry a USB to micro-usb cable around. MAYBE mini USB, but it's rare.
- I see heaps of people with a USB to 30-pin dock connector in their bags.
- Adaptor? Seriously? If you forget your charging cable, are you going to remember the adaptor on the off chance that someone has a micro USB cable?
I think if anything, the EU should force other manufacturers to adopt the Apple standard.
"Oh Crap"
"What?"
"Forgot my charger"
"Don't worry, you can use mine. I have my standard USB to micro-USB cable. You're lucky, as I'm only one of 3 people that actually carries one of these around."
"Where do I plug it in?"
"Duuuude. You forgot the dock connector to micro-USB cable."
"..."
"Oh, nevermind, common Dave has a super ubiquitous USB to dock connector. We're good."