Mine is also apparently en route. A few days ago, I preemptively ordered some USB-A to USB-C cables that claim to support the full data spec. (Cable Matters, made in China, $13/ea on Amazon.) We'll see how well those work.

At least initially, I'm not going to buy a bunch of high-power chargers. When I'm in the car or the office, 2A/5V charging is just fine. The 3A/5V charger will be primarily awesome when doing the power traveller thing, trying to crank as much charging in as little time as possible.

Presumably, in 6 months, there will be a slew of new accessories that get rid of USB-A plugs and are all USB-C, 3A/5V (or more) on every plug. It's cool to imagine something like that which can charge your laptop and your phone, while also acting as a data bridge between them.