The obvious things to do with it (mass-immortality etc) are undermined the premise- from what I remember of the manga (good read when out of brainpower), Kami created the Dragon Balls so that mankind would have a hope even in the darkest of times- he failed to anticipate the Dragon Radar which made finding them trivial.
Upgraded Kami would probably realise that given the power of Shenron, he could create the Dragon Balls in such a way that, directly or indirectly if necessary, he could mold the world and prevent such dark times in the first place. It would then be down to whether he was smart enough to WANT everybody to be immortal.
The obvious things to do with it (mass-immortality etc) are undermined the premise- from what I remember of the manga (good read when out of brainpower), Kami created the Dragon Balls so that mankind would have a hope even in the darkest of times- he failed to anticipate the Dragon Radar which made finding them trivial.
Upgraded Kami would probably realise that given the power of Shenron, he could create the Dragon Balls in such a way that, directly or indirectly if necessary, he could mold the world and prevent such dark times in the first place. It would then be down to whether he was smart enough to WANT everybody to be immortal.