JEMC said:
Yes, rumors also said back then that Tegra would be used in 3DS. And as one the sources say (Hardoc) Sony decided to go Nvidia just 1 year before the launch of PS3, so with them anything is possible. |
That last part is a myth that keeps getting repeated without any proof for some reason.
http://www.gamesindustry.biz/articles/nvidia-partners-with-sony-on-playstation-3-graphics-hardware
Here's an article from 2004, two years before the PS3 was released, where they are anouncing their collaboration. The way it's worded seems to imply that they've been working together since the begining, so it's not just a last minute thing.