If it's a case of the same performance and same specs, to me it's the same product with a different name.
The 55nm parts are different, but only in that they run cooler and use less power, they're still essentially the same (to me) as the other specs, and performance, remains the same.
Whether that inquirer article will turn out to be true I don't know, along with Fudzilla they do give out some wacky info from time to time.
