I'm quite excited by the CM4 RPis. There are quite a few variants but all retain the same form factor and connector pinout. These little boards are fostering a

I'm quite excited by the CM4 RPis. There are quite a few variants but all retain the same form factor and connector pinout. These little boards are fostering a lot of new break-out ideas for all sorts of purposes, from Routers to NAS with a lot of specialised equipment in between (great for industrial and automation). The great thing is that the core component remains the same, with known software that (generally) works well. You could make special boards with a few CM4 on them, all interconnected and ready for parallel computing. you could already do these things with the CM3 but the new versions have better and faster interfaces that make high bandwidth applications possible.