LOL this is from that site:
"The first Tegra 600 Series-based devices are expected to begin shipping in the second half of 2009."
Seems like calling this a "concept" is an understatement.
No way T2 is based on Tegra 600 series. Tegra 600 is an old platform based on ARM 11 design!
It should be based on Tegra 250, which contains two ARM Cortex A9 cores.
Read this article:
NVIDIA Tegra 2 (Tegra 250) dual-core processor smartphones - are they going to be FAST? - Smartphone Benchmarks Forum
Can't wait to find out how well Tegra 2 platform works as a smartphone!