The only was that I can see Select having a future is if it can be loaded onto machines that run Open as an upgrade.
One way to achieve this would be to ensure Open and Select always have similar enough internal structure so that a pick and mix approach could be used.
Then it would be worthwhile for Iyonix (and future machines) owners to join select.
I have recently started using my Adjust Risc PC again as a second machine. It certainly is a lot nicer OS than on my Iyonix. Unfortunately, it is too slow for many things I can just about get away with on the Iyonix, and is just used as an RDP terminal for a lot of tasks.
With respect to the Image rendering system, ROL really need to produce a freely distributable module that provides the API to other versions of the OS. (Even if this module doesn't support all the formats the full version does, eg just Sprites and any 3rd party add-ons). Without this, the whole system is totally pointless. And that would be a shame.