I read the article on EE Times as well and don't see anything that makes me think this won't happen on the ninth. The EE Times article did say it didn't look like ICS would be on this tablet however.
Regardless of launch date, if the Tegra 3 tablets hit the same price points and build quality as the Tegra 2 tablets I've owned, they'll be competitive. Still waiting to see what the new OMAP SoC looks like as well, some benchmarks but not a plethora of devices out there yet.