Now that the keys have been made public it is piracy that will explode onto the PS3 scene not homebrew sadly.
Having said that the PS3 is a closed quantified architecture (required) powerful (nice to have) and cheaply available and millions installed in homes (essential). Also the PS3 should be available for at least another 8 years to buy.
I think it's worth porting AROS to PS3. It does tick all the right boxes for a closed platform, just add keyboard and mouse.
I wish you good luck my friend. If someone ports something like Blitz Basic to AROS I will even write games for it too