I think on-device AI will show up more front and center but in a few more years.

A big issue to solve is battery life. Right now there's already a lot that goes on at night while the user sleeps with their phone plugged in. This helps to preserve battery life because you can run intensive tasks while hooked up to a power source.

If apps are doing a lot of AI stuff in the course of regular interaction, that could drain the battery fairly quickly.

Amazingly, I think the memory footprint of the phones will also need to get quite a bit larger to really support the big uses cases and workflows. (I do feel somewhat crazy that it is already possible to purchase an iPhone with 1TB of storage and 8GB of RAM).

2TB microsdxc cards have been available for a year or so, and 1TB cards have been available for several years and are even quite affordable. They work in many Android phones including my cheap Motorola. So it's Apple's sky-high premiums that has made their 1TB phones surprising.

https://www.bhphotovideo.com/c/product/1868375-REG/sandisk_s... 2TB $185

https://www.bhphotovideo.com/c/product/1692704-REG/sandisk_s... 1TB $90

https://www.bhphotovideo.com/c/product/1712751-REG/sandisk_s... 512GB $40