I think it's the right time for IPO. RISC-V development is making huge progress fast. They are also upstreaming some changes. While SG200x is quite old and has unfinished Vector 0.7 extension, new chips claim to have vector 1.0. The documentation is still lacking but their progress is clearly visible.
Exactly. Then there is more powerful Lichee Pi 4A (https://sipeed.com/licheepi4a) which directly competes with RPi4 and more powerful chips are in the making like P550 (https://www.sifive.com/boards/hifive-premier-p550).
I think it's the right time for IPO. RISC-V development is making huge progress fast. They are also upstreaming some changes. While SG200x is quite old and has unfinished Vector 0.7 extension, new chips claim to have vector 1.0. The documentation is still lacking but their progress is clearly visible.