But isn't this the ultimate idea behind NVMe? By using PCIe in parallel it gets to the point where you can rely on nonvolatile memory to be more of a system workhorse than merely a storage system. Apple seems to have an idea of where they want to go - just look at the last two iPhones, the 6s and 7. They've had around 1/2 to 3/4 the amount of RAM of other flagship devices while having stupid-fast storage and in real-world tests they outperform their competitors for load times and responsiveness.