RISC OS 5 for A9Home and Omega?

On the ROOL forums, I've raised the question of interest in a port of RISC OS 5 to the A9Home and Omega. Development on these machines has all but stopped by ROL, so this might be of interest to owners of these machines, and a port should be much simpler than for example the BeagleBoard port, which was to an unsupported processor.

I would like to be able to dual boot between RISC OS 4.42 and RISC OS 5. on the A9.

I think the more important thing would be to get RISC OS 5 on the new hardware first though.