Decent article and it should give a lot of reservation holders hope (depending on when they reserved) of getting, if not the full, then at least a partial credit.
I do have two issues with the article, first, they referred to it as a rebate and it isn't, it's a tax credit. No one is going to get $7,500 taken off the cost of their car, they'll get it back when they file their taxes for the tax year that they received their car in (assuming they qualify).
Secondly, they make it sound as if a car only counts towards the 200,000 if the credit is taken for it. That's not true, the wording of the IRS document (
Plug-In Electric Drive Vehicle Credit (IRC 30D)) says "The credit begins to phase out for a manufacturer’s vehicles when at least 200,000 qualifying vehicles have been sold for use in the United States...", so as soon as number 200,000 is sold that's it, not whether or not everyone that can actually applies for the credit.