I am still hoping for an inexpensive, non bulky level 1 charger to be available. This would be something great to keep in the car for that "oh-no" moment when you need to plug into someones 110 outlet for a few hours to get you to a level 2 charging station. If you ever need to charge away from home, odds are it is going to be one of these three ways :
1. A public j1772 charging station
2. A RV park with a 14-50 outlet
3. A 110 outlet.
It is my assumption that most trips that would use a 14-50 outlet would be planned in advance, and bringing the UMC along is no problem. When the spare EVSE would be needed is that unplanned event when you end up just a few miles short of getting to the next charger, and need to bum a 110 outlet from someone. This is when a compact an inexpensive level 1 evse would be perfect.
The Volt level 1 charger is only about $360 online, I wonder if, when combined with the j1772 adapter, would work on a model s. It's still pretty bulky, but the price point is actually just about right on it. If anyone has a model S nearby me, I would be happy to test my volt's level 1 on it, if you are brave enough to plug an unknown EVSE into your new car