would it be possible to take 2 roms and combine them with a ui at startup that lets you choose between the two?
i know its a longshot but you can dualboot on a pc, so why not its mobile buddy?
or if you could take all the files that are flashed to the rom normally and put them in a designated folder on sd for the 2nd rom. in other words, you could have say a conflipper rom on your main rom and have a juicy or mighty rom on your sd and choose which you want to boot at startup?
i highly doubt this will turn up any REAL results but it would be so amazing that i would buy a dev a lot of coffee if they made this into a reality, even though its probably just a dream, but hell MLKJ had a dream and now obama is president so who knows