Look Im new so forgive if Im being noobish as I dont have a bloody clue about hacking
I have been following the forums and threads for some time and I have deduced no one at all can actually create a CFW for 3.56+ that works for all games after that. I has something to do with 3.6...3.7....4.0 keys. I get that none of these are available. I am suggesting that those that if those that can (I cant because I dont have a clue about hacking) how about using this hack kakaroto has come up with a cfw that can play the 3.55 games on a 3.7 or 4.0 system. how about retrofitting the cfw 4.0 with the 3.55 peek and poke (whatever that means) as we do have the 3.55 keys. That way one can upgrade to the latest firmware version play the new games (originals - no backups) and play the collection of backups from their hardware. Hence no dualboot.
Anyway just an idea, dont know if its actually doable. I aint hating anyone, the devs have done a great job so far & i hope they continue.