128GB is the sweet spot for most everyone who doesn’t carry a lot of video. It’s cheap enough for most people now, and more or less removes the capacity limitation worry.

Now we need a few other steps to improve power consumption on the screen and display side, while improving SSD performance and delivering wireless broadband widely and with pricing that is not irritating (greater coverage ubiquity, cheap enough, unlimited enough as to not require attention). And get the weight down.