I'm confident that we won't need something like MobileCoin, which is based on secure hardware which you have to trust. I'm pretty sure someone will come up with

I'm confident that we won't need something like MobileCoin, which is based on secure hardware which you have to trust. I'm pretty sure someone will come up with some kind of combination of RaiBlocks and Monero, for example. Also, SpectreCoin might be onto something if they are able to implement stealth staking.