I completely disagree. There are already three charger manufacturers (and large ones at that) attending EVS26 that have committed to making dual CHAdeMO and SAE chargers (not just ones that can be retrofitted in a later date). They even showed an example at the show. And the US/state government is much more likely to back an SAE standard (same with IEC on the European side). Keep in mind J1772 stations started appearing in mid-2010 before even one car was out that can use it (the Leaf and Volt launched at the end of 2010):
What Charging Connector? J1772
Given the Spark will be released as a 2013 model year car, I expect the first SAE DC station to start appearing near the end of this year. The Spark/Beat EV prototypes have a 20kWh pack with a123 cells (which can take a 2C charge easily) so it shouldn't be any worse than a Leaf using CHAdeMO. Personally in terms of large volume, I think the car to look for is the BMW i3, which will launch in Germany in 2013.
Keep in mind the Tesla connector is electrically compatible with the SAE DC connector and the signaling is similar. Even the max power rating is exactly the same (90kW)! CHAdeMO is completely different in that it requires a CAN bus and max power rating is 50kW. That means it's much easier to built a dual Tesla/SAE DC charger or just built an SAE DC charger and have the Model S use an adapter. Heck I bet the supercharger can also be converted to support SAE relatively easily.