MultiRom is open source. Would be nice to have someone that's already messed with the source code, but at the same time, any dev could build it. Just need one that knows what needs to be changed for the specific device.
and with all the differences in the G2, I don't think 1 port would work on all devices. There are to many hardware differences He could use one as a starting oint, but would still need multiple versions. Just like each model needs it's own recovery.