Re: Some minor corrections.
1. I don't see the article claiming this is to do with the Raspberry Pi Foundation - it's just one of many carrier boards available that a CM4 can be plugged into. And anyway, if we are doing corrections, Foundation don't develop or sell hardware - they do education.
2. It's going to be months before this Turing Pi V2 cluster board is available. Although they are aiming for September, previous experience of crowdfund projects tells me sometime in 2023.
3. Although it might clock up, the Compute Module 4 specification on the Raspberry Pi website is 1.5GHz. This Turing Pi V2 boards is about CM4, not Pi4B.