Why would there be finished documentation available when the board hasn't shipped, and can't even be pre-ordered yet?
Also, boards with an SoC with a single 1 GHz C906 core have been shipping for two years, and people testing them have found them superior to a Pi Zero (about 15% faster on average). This board has dual 1 GHz C906s, which is obviously better again.
Also, boards with an SoC with a single 1 GHz C906 core have been shipping for two years, and people testing them have found them superior to a Pi Zero (about 15% faster on average). This board has dual 1 GHz C906s, which is obviously better again.