Yes, I think it was in the news last week (or maybe earlier) and I was a bit skeptical myself. But I might be too cynical in that Toyota seemed to make a bad bet and not commit to BEVs early on, and they might just need some positive news. I also don't think they've actually shown anything yet.

I don't know if the promised range increase will actually be that important, especially if you can end up charging much faster when you do need to make a longer trip, but rather the much greater energy density will mean lighter cars leading to better efficiency and making small BEVs much more feasible.