HTC One (M7 / GSM)
The end of expandable memory?
Maybe it won't go away entirely, but it used to be almost a requirement, and now it no longer is.
On lower-end phones, it's easy to include memory card slots. The design pressure is less. Plus they're more likely to put only 4 or 8 GB inside to keep costs down, which makes a slot for expansion more necessary.
Another factor is that people are keeping more in the cloud. Thats helping reducing the need for local storage memory , and thus for card slots.