You can already get a wide range of Chinese clones of proprietary Apple adapters for under $3:

http://m.ebay.com/itm/131250380700

http://m.ebay.com/itm/111573913018

Some are actually better than Apple, the braided lightning cables are a lot harder to break. You can even get them with LEDs if that's you thing.

In my experience they work just as well, but quality can sometimes really vary. I hope this leads to cheap clones from reputable manufacturers who have high quality standards.