I think they're starting to get there, now that we see availability from GM and Chrysler. Ford is also working with Westport to offer a product. I think it's coming, but for them it's strictly about cost: x amount to engineer the product, yamount to manufacture it, and they've got to make sure they're going to sell enough units to make that worth their while.
Now that they are seeing interest in the producer community around North America, I think they are starting to see sufficient interest. But the other thing is that these guys work in thousands of vehicles manufactured per month. They don't want to talk about hundreds. This is the other challenge with the automakers: getting to that zone where, to them, the numbers make sense.